DOCSLIB.ORG

ICCUB Annual Report 2014

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
ICCUB Annual Report 2014 Institute of Cosmos Sciences REPORT OF ACTIVITIE S 2 0 1 4 FOREWORD In 2014 the directing body of the Institute of Cosmos new modality named Maria de Maeztu was announced in Sciences was renovated. I was honored to be elected its order to have a specific, better suited call for centers and Director, along with Vice Director Dra. Francesca Figueras institutions that belong to universities. The requisites, and Secretary Dr. Bartomeu Fiol. required levels, demands and procedures of evaluation set by the Ministry were exactly the same as for the previous I would like to use these lines to gratefully acknowledge Severo Ochoa calls. In this first edition of the Maria de Dra. Figueras and Dr. Fiol for the invaluable help and Maeztu call organized at the end of 2014, the ICCUB support they offered me from the very beginning. I finally received the distinction of belonging to the repu­ would also like to express my deep gratitude to our table group of Units of Excellence. former Director Dr. Eduard Salvador and to our current Scientific Director Dr. Josep Maria Paredes, for laying the This award represents an important recognition to the foundations that allowed our Institute to be recognized hard work done so far, and it is a unique opportunity to as a Center of Excellence. The joint effort of all ICCUB enhance the research conducted at the Institute and to take members has enabled the institution to be awarded in 2015 it to higher levels of excellence. It is now our responsibility the distinction Unidad de Excelencia Maria de Maeztu in to properly use this recognition and the additional financial the first call organized by the Ministry of Economy and support associated to it in order to increase our scientific Competitiveness (MINECO). achievements during the next four years. Since 2011 the ICCUB has been participating in the successive calls of the Severo Ochoa program for Spanish Research Centers/Units of Excellence, obtaining an in­ Lluís Garrido Beltrán creasingly high score over time. It was in 2014 when a Director CONTENTS 1. THE ICCUB 7 4. PROJECTS AND FUNDS 28 Organization Chart 7 European Projects and Funds 28 2014 ­ The ICCUB in Figures 8 Other International Projects 29 National Plan Projects 29 2. ICCUB STAFF 9 Consolider Ingenio Projects 32 Researchers 9 Other National Grants 32 Engineers and Technicians 10 Consolidated Groups 33 Services and Administration Personnel 10 Contracts with the Industry 33 3. RESEARCH ACTIVITY 11 5. PUBLICATIONS 35 Cosmology and Large Scale Structure 12 SCI Publications 35 Experimental Particle Physics 13 Non­SCI Publications 55 Galaxy Structure and Evolution 14 Technical Documents and Reports 58 Gravitation and Cosmology 15 High Energy Astrophysics 16 6. THESES 62 Nuclear and Hadronic Physics 17 PhD Theses 62 Particle Physics Phenomenology 18 Master Theses 65 Star Formation 19 Theoretical Physics 20 7. ACTIVITIES 67 Additional Areas of Research 21 ICCUB Colloquia 67 Electronic and Instrumentation Development 24 Seminars 67 Very Large Data Processing and Analysis 26 Event Organization 72 Knowledge Transfer and Innovation 27 Public Outreach 73 THE ICCUB 1 The Institute of Cosmos Sciences of the University of Barcelona (ICCUB) is an interdisciplinary center which is devoted to fundamental research in the field of cosmology, as well as to the technological applications of the sciences of the cosmos in general. It gathers researchers from the departments of Astronomy and Meteorology, Structure and Constituents of Matter, Fundamental Physics, Applied Mathematics, Organic Chemistry and Electronics. It was created in 2006 as the instrument of the University of Barcelona for the active support of research in these PHYSICS FACULTY, HEADQUARTERS OF THE fields, paying special attention to their synergies, as well INSTITUTE OF COSMOS SCIENCES as to promote experimental and instrumental activity, C. Martí i Franquès, 1 · 08028 Barcelona enabling a significant participation of the UB in large Tel: +34 93 402 15 88 international collaborations, and to attract highly qualified [email protected] · http://icc.ub.edu scientific personnel. ORGANIZATION CHART Executive Board Scientific Board Director: Lluís Garrido Francesca Figueras (Deputy Director) Deputy Director: Francesca Figueras Bartomeu Fiol Secretary: Bartomeu Fiol Lluís Garrido (Director) Ricardo Graciani Simone Migliari Council of the Institute Josep M. Paredes (Scientific Director) Domènec Espriu Bartomeu Fiol (Secretary) International Advisory Council Francesca Figueras (Deputy Director) Lluís Garrido (Director) Felix Aharonian, Dublin Institute for Advanced Eugeni Graugés Studies and Max Planck Institute für Kernphysik, David Mateos Heidelberg (Chair) Simone Migliari Alan Heavens, Imperial Centre for Inference and Jordi Miralda Cosmology, Imperial College, London. Josep Maria Paredes Slava Mukhanov, ASC, Physics Department, Àngels Ramos LMU, Munich. Blai Sanahuja Tatsuya Nakada, LPHE, École Polytechnique Joan Soto Fédérale de Lausanne, Lausanne. 8 1. THE ICCUB 2014 - THE ICCUB IN FIGURES Staff National Plan & Consolider 59 Permanent Staff Projects: 2430 k€ 6 Ramon y Cajal Members 3 Juan de la Cierva Members EU Projects: 1150 k€ 29 Postdoc Fellows 44 PhD Students Consolidated 20 Engineers and Technicians Groups:100 k€ 5 Services and Administration Personnel Other international 11 Visiting Scholars projects: 60 k€ Contracts with the industry: 240 k€ Other : 320 k€ Projects and Funds TOTAL : 4300 k€ 16 European Projects PROJECTS AND FUNDS 2014: BUDGET 3 Other international projects For projects with an execution period of more than one year, 35 National Plan & Consolider Projects only the proportional amount has been considered. 10 Consolidated Groups 13 Contracts with the industry 15 Other Funds Publications 281 SCI Publications 44 Non SCI­Publications 95 Technical Reports Theses 10 Finished PhD Theses 64 Ongoing PhD Theses 21 Finished Master Theses Activities 7 ICCUB Colloquia 83 Group Seminars 9 Event Organization 40 Public Talks 4 Exhibitions ICCUB STAFF 2 RESEARCHERS* Permanent Staff Paredes, Josep M. (UB) Postdoc Fellows Parreño, Assumpta (UB) Canal, Ramon (UB) Polls, Artur (UB) Àgueda, Neus Centelles, Mario (UB) Pons, Josep M. (UB) Aliu, Ester Crusats, Joaquim (UB) Ramos, Àngels (UB) Aran, Àngels D'Enterria, David (ICREA, leave of Ribó, Josep M. (UB) Attems, Maximilian absence) Ribó, Marc (UB) Balaguer, Dolores Diéguez, Ángel (UB) Ruiz, Hugo (UB) Bellini, Emilio El­Hachemi, Zoubir (UB) Russo, Jorge G. (ICREA) Bergström, Johannes Emparan, Roberto A. (ICREA) Sala, Ferran (UB) Carrasco, José M. Espriu, Domènec (UB) Salvador, Eduard (UB) Cuesta, Antonio José Estalella, Robert (UB) Salvat, Francesc (UB) Fernández, Antón Fabricius, Claus Vilhelm (IEEC) Sanahuja, Blai (UB) García, Miguel Ángel Fernández, José M. (UB) Solà, Joan (UB) Gracia, Gonzalo Figueras, Francesca (UB) Solanes, José M. (UB) Haibo, Qiu Fiol, Bartomeu (UB) Soto, Joan (UB) Kundu, Arnab Garrido, Lluís (UB) Taron, Josep M. (UB) Masana, Eduard Garriga, Jaume (UB) Torra, Jordi (UB) Niro, Viviana Gómez, Gerard (UB) Verdaguer, Enric (UB) Pantelidou, Christiana Gómez, Jose M. (UB) Verde, Licia (ICREA) Portell, Jordi Gomis, Joaquím (UB) Viñas, Xavier (UB) Roca, Santi González, María Concepción (ICREA) Romero, Mercè Graciani, Ricardo (UB) Sestayo, Yolanda Graugés, Eugeni (UB) Ramon y Cajal Members Simpson, Fergus Rae Goalen Guasch, Jaume (UB) Tanabe, Kentaro Guzmán, Rafael (UB & U. Florida) Bosch, Valentí Tarrio, Luis Javier Iwasawa, Kazushi (ICREA) Casalderrey, Jorge Tywoniuk, Konrad Jimenez, Raúl (ICREA) Iblisdir, Sofyan Voss, Holger Jordi, Carme (UB) Julià, Bruno Weiler, Michael Latorre, José I. (UB) Migliari, Simone Zanin, Roberta Llosa, Josep (UB) Notari, Alessio Zilhao, Miguel López, Rosario (UB) Luri, F. Xavier (UB) Magas, Volodymyr (UB) Juan de la Cierva Members Visiting Scholars Manrique, Alberto (UB) Mateos, David (ICREA) Tarrio, Luis Javier Andrianov, Alexander Mescia, Federico (UB) Tywoniuk, Konrad Ballesteros, Guillermo Miralda, Jordi (ICREA) Zanin, Roberta Casademunt, Jaume Molina, Alfred (UB) Jorba, Ángel Núñez, Jorge C. (UB) Lizzi, Fedele Padoan, Paolo (ICREA) Prieto, Joaquin * Researchers with ICCUB affiliation between 1. January and 31. December 2014 10 2. STAFF Ruiz, Josep Xavier Di Dato, Adriana Moreno, Víctor Ruiz, M. Pilar Feijoo, Albert Munar, Pere Talavera, Pere Fröb, Markus Olikara, Zubin Philip Torrelles, José María Gabbanelli, Luciano Oriol, Pablo Yun, Joao Galindo, Daniel Pablos, Daniel Garolera, Blai Paita, Fabrizio Gómez, Adrià Palmer, Max PhD Students Gontcho A Gontcho, Satya Paredes, Xavier González, Juan Pérez, Daniel Abedi, Hoda Juan, Enric Pérez, Ignasi Alsina, Daniel Juárez, Carmen Pérez­Obiol, Axel Ariño, Andreu Maneu, Jordi Planells, Xumeu Barranco, Alejandro Marcote, Benito Renau, Albert Camboni, Alessandro Marín, Carla Rives, Vicente Carbone, Arianna Mariño, Mauricio Torrents, Genís Casamiquela, Laia Martínez, Marina Triana, Miquel Cheng, Yu Mas, Lluís Vilella, Eva Dector, Aldo Merino, M. Teresa ENGINEERS AND TECHNICIANS Antiche, Erika Comerma, Albert Pérez, Gabriel Borrachero, Raúl Garralda, Nora Picatoste, Eduard Casajús, Adrià Gascón, David Roma, David Casanova, Raimon González, Juan José Sabater, Josep Casas, Albert Julbe, Francesc Sanuy, Andreu Castañeda, Javier Mauricio, Joan Trenado, Juan Clotet, Marcial Molina, Daniel SERVICES AND ADMINISTRATION PERSONNEL ICCUB Secretariat Group Support Collaborating Students Frutos, Ariadna Macduff, Kayla Ortiz, Elisenda Moreno, Ana Belén Olarte, Surinye RESEARCH ACTIVITY 3 Research at ICCUB, a center
Load more

Recommended publications
  • Photospheric Activity, Rotation and Magnetic Interaction in LHS 6343 A
    Astronomy & Astrophysics manuscript no. lhs6343_v9 c ESO 2018 May 4, 2018 Photospheric activity, rotation and magnetic interaction in LHS 6343 A E. Herrero1, A. F. Lanza2, I. Ribas1, C. Jordi3, and J. C. Morales1, 3 1 Institut de Ciències de l’Espai (CSIC-IEEC), Campus UAB, Facultat de Ciències, Torre C5 parell, 2a pl, 08193 Bellaterra, Spain, e-mail: [email protected], [email protected], [email protected] 2 INAF - Osservatorio Astrofisico di Catania, via S. Sofia, 78, 95123 Catania, Italy, e-mail: [email protected] 3 Dept. d’Astronomia i Meteorologia, Institut de Ciències del Cosmos (ICC), Universitat de Barcelona (IEEC-UB), Martí Franquès 1, E08028 Barcelona, Spain, e-mail: [email protected] Received <date> / Accepted <date> ABSTRACT Context. The Kepler mission has recently discovered a brown dwarf companion transiting one member of the M4V+M5V visual binary system LHS 6343 AB with an orbital period of 12.71 days. Aims. The particular interest of this transiting system lies in the synchronicity between the transits of the brown dwarf C component and the main modulation observed in the light curve, which is assumed to be caused by rotating starspots on the A component. We model the activity of this star by deriving maps of the active regions that allow us to study stellar rotation and the possible interaction with the brown dwarf companion. Methods. An average transit profile was derived, and the photometric perturbations due to spots occulted during transits are removed to derive more precise transit parameters. We applied a maximum entropy spot model to fit the out-of-transit optical modulation as observed by Kepler during an uninterrupted interval of 500 days.
    [Show full text]
  • Lhs 6343 C: a Transiting Field Brown Dwarf Discovered by the Kepler Mission∗
    The Astrophysical Journal, 730:79 (11pp), 2011 April 1 doi:10.1088/0004-637X/730/2/79 C 2011. The American Astronomical Society. All rights reserved. Printed in the U.S.A. LHS 6343 C: A TRANSITING FIELD BROWN DWARF DISCOVERED BY THE KEPLER MISSION∗ John Asher Johnson1,2, Kevin Apps3, J. Zachary Gazak4, Justin R. Crepp1, Ian J. Crossfield5, Andrew W. Howard6, Geoff W. Marcy6, Timothy D. Morton1, Carly Chubak6, and Howard Isaacson6 1 Department of Astrophysics, California Institute of Technology, MC 249-17, Pasadena, CA 91125, USA; [email protected] 2 NASA Exoplanet Science Institute (NExScI), CIT Mail Code 100-22, 770 South Wilson Avenue, Pasadena, CA 91125, USA 3 Cheyne Walk Observatory, 75B Cheyne Walk, Horley, Surrey, RH6 7LR, UK 4 Institute for Astronomy, University of Hawai’i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA 5 Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, CA 90095, USA 6 Department of Astronomy, University of California, Mail Code 3411, Berkeley, CA 94720, USA Received 2010 September 8; accepted 2011 January 18; published 2011 March 8 ABSTRACT We report the discovery of a brown dwarf that transits one member of the M+M binary system LHS 6343 AB every 12.71 days. The transits were discovered using photometric data from the Kepler public data release. The LHS 6343 stellar system was previously identified as a single high proper motion M dwarf. We use adaptive optics imaging to resolve the system into two low-mass stars with masses 0.370 ± 0.009 M and 0.30 ± 0.01 M, respectively, and a projected separation of 0.55.
    [Show full text]
  • Abstracts Connecting to the Boston University Network
    20th Cambridge Workshop: Cool Stars, Stellar Systems, and the Sun July 29 - Aug 3, 2018 Boston / Cambridge, USA Abstracts Connecting to the Boston University Network 1. Select network ”BU Guest (unencrypted)” 2. Once connected, open a web browser and try to navigate to a website. You should be redirected to https://safeconnect.bu.edu:9443 for registration. If the page does not automatically redirect, go to bu.edu to be brought to the login page. 3. Enter the login information: Guest Username: CoolStars20 Password: CoolStars20 Click to accept the conditions then log in. ii Foreword Our story starts on January 31, 1980 when a small group of about 50 astronomers came to- gether, organized by Andrea Dupree, to discuss the results from the new high-energy satel- lites IUE and Einstein. Called “Cool Stars, Stellar Systems, and the Sun,” the meeting empha- sized the solar stellar connection and focused discussion on “several topics … in which the similarity is manifest: the structures of chromospheres and coronae, stellar activity, and the phenomena of mass loss,” according to the preface of the resulting, “Special Report of the Smithsonian Astrophysical Observatory.” We could easily have chosen the same topics for this meeting. Over the summer of 1980, the group met again in Bonas, France and then back in Cambridge in 1981. Nearly 40 years on, I am comfortable saying these workshops have evolved to be the premier conference series for cool star research. Cool Stars has been held largely biennially, alternating between North America and Europe. Over that time, the field of stellar astro- physics has been upended several times, first by results from Hubble, then ROSAT, then Keck and other large aperture ground-based adaptive optics telescopes.
    [Show full text]
  • A Survey of M Stars in the Field of View of Kepler Space Telescope
    The Astrophysics of Planetary Systems: Formation, Structure, and Dynamical Evolution Proceedings IAU Symposium No. 276, 2010 c International Astronomical Union 2011 A. Sozzetti, M. G. Lattanzi & A. P. Boss , eds. doi:10.1017/S1743921311020746 A survey of M stars in the field of view of Kepler space telescope Mahmoudreza Oshagh1, Nader Haghighipour2 and Nuno C. Santos1 1 Centro de Astrof´ısica, Faculdade de Ciˆencias, Universidade do Porto, Rua das Estrelas, 4150–762 Porto, Portugal email: [email protected] 2 Institute for Astronomy and NASA Astrobiology Institute, University of Hawaii-Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822,USA Abstract. M dwarfs constitute more than 70% of the stars in the solar neighborhood. They are cooler and smaller than Sun-like stars and have less-massive disks which suggests that planets around these stars are more likely to be Neptune-size or smaller. The transit depths and transit times of planets around M stars are large and well-matched to the Kepler temporal resolution. As a result, M stars have been of particular interest for searching for planets in both radial velocity and transit photometry surveys. We have recently started a project on searching for possible planet-hosting M stars in the publicly available data from Kepler space telescope. We have used four criteria, namely, the magnitude, proper motion, H-Ks and J-H colors, and searched for M stars in Q0 and Q1 data sets. We have been able to find 108 M stars among which 54 had not been previously identified among Kepler’s targets. We discuss the details of our selection process and present the results.
    [Show full text]
  • Arxiv:1408.0401V1 [Astro-Ph.EP] 2 Aug 2014 Page Intentionally Left Blank
    arXiv:1408.0401v1 [astro-ph.EP] 2 Aug 2014 Page intentionally left blank. Development and Application of Tools to Characterize Transiting Astrophysical Systems A dissertation presented by Bence B´eky to The Department of Astronomy in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the subject of Astronomy and Astrophysics Harvard University Cambridge, Massachusetts 2014 April Copyright c 2014 Bence B´eky All rights reserved. Dissertation Advisor: Author: Dr. Matthew Holman Bence B´eky Development and Application of Tools to Characterize Transiting Astrophysical Systems Abstract Since the discovery of the first exoplanets (planets outside our Solar System) more than 20 years ago, there has been an increasing need for photometric and spectroscopic models to characterize these systems. While imaging has been used extensively for Solar System bodies and extended objects like galaxies, the small angular extent of typical planetary systems makes it difficult or impossible to resolve them. Spatially integrated observations like measuring the total brightness or spectrum, however, can be conducted at a resonable cost. This thesis focuses on photometric models in the context of transiting systems, which exhibit a number of phenomena that can be exploited for characterization. First, we showcase the popular methods of transiting exoplanet discovery and characterization by ground based observations on the hot Jupiter HAT-P-27b. We demonstrate how transits allow us to constrain planetary mass, radius, and orbital inclination, which would not be possible based only on, for example, radial velocity measurements. Next, we perform reflection spectroscopy on HAT-P-1b, another hot Jupiter, using the binary companion of the host star as a reference to remove systematic errors from iii the signal.
    [Show full text]
  • Detectability of Atmospheric Features of Earth-Like Planets in the Habitable
    Astronomy & Astrophysics manuscript no. Wunderlich_etal_2019_arxiv c ESO 2019 May 8, 2019 Detectability of atmospheric features of Earth-like planets in the habitable zone around M dwarfs Fabian Wunderlich1, Mareike Godolt1, John Lee Grenfell2, Steffen Städt3, Alexis M. S. Smith2, Stefanie Gebauer2, Franz Schreier3, Pascal Hedelt3, and Heike Rauer1; 2; 4 1 Zentrum für Astronomie und Astrophysik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany e-mail: [email protected] 2 Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt, Rutherfordstraße 2, 12489 Berlin, Germany 3 Institut für Methodik der Fernerkundung, Deutsches Zentrum für Luft- und Raumfahrt, 82234 Oberpfaffenhofen, Germany 4 Institut für Geologische Wissenschaften, Freie Universität Berlin, Malteserstr. 74-100, 12249 Berlin, Germany ABSTRACT Context. The characterisation of the atmosphere of exoplanets is one of the main goals of exoplanet science in the coming decades. Aims. We investigate the detectability of atmospheric spectral features of Earth-like planets in the habitable zone (HZ) around M dwarfs with the future James Webb Space Telescope (JWST). Methods. We used a coupled 1D climate-chemistry-model to simulate the influence of a range of observed and modelled M-dwarf spectra on Earth-like planets. The simulated atmospheres served as input for the calculation of the transmission spectra of the hy- pothetical planets, using a line-by-line spectral radiative transfer model. To investigate the spectroscopic detectability of absorption bands with JWST we further developed a signal-to-noise ratio (S/N) model and applied it to our transmission spectra. Results. High abundances of methane (CH4) and water (H2O) in the atmosphere of Earth-like planets around mid to late M dwarfs increase the detectability of the corresponding spectral features compared to early M-dwarf planets.
    [Show full text]
  • Part I Financial Statements and Schedule of Expenditures of Federal Awards
    Part I Financial Statements and Schedule of Expenditures of Federal Awards Report of Independent Auditors To the Board of Overseers of Harvard College: Report on the Consolidated Financial Statements We have audited the accompanying consolidated financial statements of Harvard University (the “University”), which comprise the consolidated balance sheet as of June 30, 2016, and the related consolidated statements of changes in net assets with general operating account detail, changes in net assets of the endowment and cash flows for the year then ended, and the related notes to the financial statements. Management’s Responsibility for the Consolidated Financial Statements Management is responsible for the preparation and fair presentation of the consolidated financial statements in accordance with accounting principles generally accepted in the United States of America; this includes the design, implementation, and maintenance of internal control relevant to the preparation and fair presentation of consolidated financial statements that are free from material misstatement, whether due to fraud or error. Auditors’ Responsibility Our responsibility is to express an opinion on the consolidated financial statements based on our audit. We conducted our audit in accordance with auditing standards generally accepted in the United States of America and the standards applicable to financial audits contained in Government Auditing Standards, issued by the Comptroller General of the United States. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free from material misstatement. An audit involves performing procedures to obtain audit evidence about the amounts and disclosures in the consolidated financial statements. The procedures selected depend on our judgment, including the assessment of the risks of material misstatement of the consolidated financial statements, whether due to fraud or error.
    [Show full text]
  • BENCHMARK TRANSITING BROWN DWARF LHS 6343 C: SPITZER SECONDARY ECLIPSE OBSERVATIONS YIELD BRIGHTNESS TEMPERATURE and MID-T SPECTRAL CLASS Benjamin T
    Draft version Wednesday 11th July, 2018 Preprint typeset using LATEX style emulateapj v. 5/2/11 BENCHMARK TRANSITING BROWN DWARF LHS 6343 C: SPITZER SECONDARY ECLIPSE OBSERVATIONS YIELD BRIGHTNESS TEMPERATURE AND MID-T SPECTRAL CLASS Benjamin T. Montet1,2, John Asher Johnson2, Jonathan J. Fortney3, Jean-Michel Desert4 (Dated: Wednesday 11th July, 2018, 05:38) Draft version Wednesday 11th July, 2018 ABSTRACT There are no field brown dwarf analogs with measured masses, radii, and luminosities, precluding our ability to connect the population of transiting brown dwarfs with measurable masses and radii and field brown dwarfs with measurable luminosities and atmospheric properties. LHS 6343 C, a weakly- irradiated brown dwarf transiting one member of an M+M binary in the Kepler field, provides the first opportunity to probe the atmosphere of a non-inflated brown dwarf with a measured mass and radius. Here, we analyze four Spitzer observations of secondary eclipses of LHS 6343 C behind LHS 6343 A. Jointly fitting the eclipses with a Gaussian process noise model of the instrumental systematics, we measure eclipse depths of 1:06 ± 0:21 ppt at 3.6µm and 2:09 ± 0:08 ppt at 4.5µm, corresponding to brightness temperatures of 1026 ± 57 K and 1249 ± 36 K, respectively. We then apply brown dwarf evolutionary models to infer a bolometric luminosity log(L?=L ) = −5:16 ± 0:04. Given the known physical properties of the brown dwarf and the two M dwarfs in the LHS 6343 system, these depths are consistent with models of a 1100 K T dwarf at an age of 5 Gyr and empirical observations of field T5-6 dwarfs with temperatures of 1070 ± 130 K.
    [Show full text]
  • Photospheric Activity, Rotation, and Magnetic Interaction in LHS 6343 A⋆
    A&A 553, A66 (2013) Astronomy DOI: 10.1051/0004-6361/201220518 & c ESO 2013 Astrophysics Photospheric activity, rotation, and magnetic interaction in LHS 6343 A E. Herrero1,A.F.Lanza2,I.Ribas1,C.Jordi3, and J. C. Morales1,3 1 Institut de Ciències de l’Espai (CSIC–IEEC), Campus UAB, Facultat de Ciències, Torre C5 parell, 2a pl, 08193 Bellaterra, Spain e-mail: [eherrero;iribas;morales]@ice.cat 2 INAF – Osservatorio Astrofisico di Catania, via S. Sofia, 78, 95123 Catania, Italy e-mail: [email protected] 3 Dept. d’Astronomia i Meteorologia, Institut de Ciències del Cosmos (ICC), Universitat de Barcelona (IEEC–UB), Martí Franquès 1, 08028 Barcelona, Spain e-mail: [email protected] Received 8 October 2012 / Accepted 5 March 2013 ABSTRACT Context. The Kepler mission has recently discovered a brown dwarf companion transiting one member of the M4V+M5V visual binary system LHS 6343 AB with an orbital period of 12.71 days. Aims. The particular interest of this transiting system lies in the synchronicity between the transits of the brown dwarf C component and the main modulation observed in the light curve, which is assumed to be caused by rotating starspots on the A component. We model the activity of this star by deriving maps of the active regions that allow us to study stellar rotation and the possible interaction with the brown dwarf companion. Methods. An average transit profile was derived, and the photometric perturbations due to spots occulted during transits are removed to derive more precise transit parameters. We applied a maximum entropy spot model to fit the out-of-transit optical modulation as observed by Kepler during an uninterrupted interval of ∼500 days.
    [Show full text]
  • Observations of Transiting Exoplanets with the JWST
    Observations of Transiting Exoplanets with the James Webb Space Telescope (JWST) Charles Beichman NASA Exoplanet Science Institute, California Institute of Technology, Jet Propulsion Laboratory Bjoern Benneke, Heather Knutson, Roger Smith California Institute of Technology Pierre-Olivier Lagage CEA, Saclay Courtney Dressing, David Latham Center for Astrophysics, Harvard University Jonathan Lunine Cornell University Stephan Birkmann, Pierre Ferruit, Giovanna Giardino European Space Agency Eliza Kempton Grinnell College arXiv:1411.1754v1 [astro-ph.IM] 6 Nov 2014 Sean Carey, Jessica Krick Infrared Procesing and Analysis Center, California Institute of Technology Pieter D. Deroo, Avi Mandell, Michael E. Ressler, Avi Shporer, Mark Swain, Gautam Vasisht Jet Propulsion Laboratory, California Institute of Technology { 2 { George Ricker Massachusetts Institute of Technology Jeroen Bouwman, Ian Crossfield Max Planck Institute of Astrophysics Tom Greene, Steve Howell NASA Ames Research Center Jessie Christiansen, David Ciardi NASA Exoplanet Science Institute, California Institute of Technology Mark Clampin, Matt Greenhouse NASA Goddard Spaceflight Center Alessandro Sozzetti Osservatorio Astronomico Di Torino Paul Goudfrooij, Dean Hines, Tony Keyes, Janice Lee, Peter McCullough, Massimo Robberto, John Stansberry, Jeff Valenti Space Telescope Science Institute Marcia Rieke, George Rieke University of Arizona Jonathan Fortney University of California, Santa Cruz Jacob Bean, Laura Kreidberg University of Chicago Drake Deming { 3 { University of Maryland Lo¨ıcAlbert, Ren´eDoyon Universit´ede Montr´eal David Sing University of Exeter Received ; accepted { 4 { Contents 1 Introduction 8 2 Key Science Opportunities 12 2.1 Transit and Secondary Eclipse Spectroscopy . 13 2.1.1 Giant Planet Spectroscopy . 13 2.1.2 Spectroscopy of super-Earths and mini-Neptunes . 16 2.1.3 Terrestrial Planet Spectroscopy .
    [Show full text]
  • Benjamin T. Montet
    BENJAMIN T. MONTET Department of Astronomy and Astrophysics [email protected] 5640 S. Ellis Ave. http://www.astro.uchicago.edu/~bmontet Chicago, IL 60637 SCIENTIFIC RESEARCH INTERESTS Planetary dynamics, transit timing studies of exoplanetary systems, M dwarfs and their companions, exoplanet populations, stellar activity EDUCATION 2011-2016: California Institute of Technology, Pasadena, CA Doctor of Philosophy in Astrophysics, defended July 2016 Thesis: \Low-mass Stars and their Companions" Advisor: Professor John Johnson Master of Science, Astrophysics, received June 2013 2007-2011: University of Illinois at Urbana-Champaign, Urbana, IL Bachelor of Science in Physics Bachelor of Science in Astronomy Minor in Mathematics Graduated summa cum laude, Bronze Tablet (top 3% of graduating class) APPOINTMENTS 2016-Present: Carl Sagan Fellow, University of Chicago, Chicago, IL 2011-2016: Graduate Research Assistant, California Institute of Technology, Pasadena, CA TEACHING AND ADVISING Undergraduate Advisor, California Institute of Technology Juliette Becker (Michigan), Transit Timing Variations with Kepler Presented at the Second Kepler Science Conference (2013), 223rd Meeting of the American Astronomical Society (2014) Paper in preparation Undergraduate Mentor, Banneker Institute, Harvard University Justin Otor (Princeton), The Mass and Orbit of Kepler-56d 2015 Summer research project, work presented at Harvard University, 227th Meeting of the American Astronomical Society (2016) Paper submitted to The Astronomical Journal Guadalupe Tovar
    [Show full text]
  • Doppler-Beaming in the Kepler Light Curve of LHS 6343 A
    Astronomy & Astrophysics manuscript no. lhs6343˙db˙v6 c ESO 2021 September 17, 2021 Doppler-beaming in the Kepler light curve of LHS 6343 A (Research Note) E. Herrero1, A. F. Lanza2, I. Ribas1, C. Jordi3, A. Collier Cameron4, and J. C. Morales5 1 Institut de Ci`encies de l’Espai (CSIC-IEEC), Campus UAB, Facultat de Ci`encies, Torre C5 parell, 2a pl, 08193 Bellaterra, Spain, e-mail: [email protected], [email protected], [email protected] 2 INAF - Osservatorio Astrofisico di Catania, via S. Sofia, 78, 95123 Catania, Italy, e-mail: [email protected] 3 Dept. d’Astronomia i Meteorologia, Institut de Ci`encies del Cosmos (ICC), Universitat de Barcelona (IEEC-UB), Mart´ı Franqu`es 1, E08028 Barcelona, Spain, e-mail: [email protected] 4 SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife KY16 9SS, e-mail: [email protected] 5 LESIA-Observatoire de Paris, CNRS, UPMC Univ. Paris 06, Univ. Paris-Diderot, 5 Pl. Jules Janssen, 92195 Meudon CEDEX, France, e-mail: [email protected] Received date / Accepted date ABSTRACT Context. Kepler observations revealed a brown dwarf eclipsing the M-type star LHS 6343 A with a period of 12.71 days. In addition, an out-of-eclipse light modulation with the same period and a relative semi-amplitude of ∼ 2 × 10−4 was observed showing an almost constant phase lag to the eclipses produced by the brown dwarf. In a previous work, we concluded that this was due to the light modulation induced by photospheric active regions in LHS 6343 A.
    [Show full text]