Dr. Sarah Ballard
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David Charbonneau Refereed Publications As of May 2015
David Charbonneau Refereed Publications as of May 2015 160. Low False Positive Rate of Kepler Candidates Estimated From A Combination Of Spitzer And Follow-Up Observations Désert, Jean-Michel; Charbonneau, David; Torres, Guillermo; Fressin, François; Ballard, Sarah; Bryson, Stephen T.; Knutson, Heather A.; Batalha, Natalie M.; Borucki, William J.; Brown, Timothy M.; Deming, Drake; Ford, Eric B.; Fortney, Jonathan J.; Gilliland, Ronald L.; Latham, David W.; Seager, Sara The Astrophysical Journal, Volume 804, Issue 1, article id. 59 (2015). 159. The Mass of Kepler-93b and The Composition of Terrestrial Planets Dressing, Courtney D.; Charbonneau, David; Dumusque, Xavier; Gettel, Sara; Pepe, Francesco; Collier Cameron, Andrew; Latham, David W.; Molinari, Emilio; Udry, Stéphane; Affer, Laura; Bonomo, Aldo S.; Buchhave, Lars A.; Cosentino, Rosario; Figueira, Pedro; Fiorenzano, Aldo F. M.; Harutyunyan, Avet; Haywood, Raphaëlle D.; Johnson, John Asher; Lopez-Morales, Mercedes; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Motalebi, Fatemeh; Nascimbeni, Valerio; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Sasselov, Dimitar; Ségransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew; Watson, Chris The Astrophysical Journal, Volume 800, Issue 2, article id. 135 (2015). 158. An Empirical Calibration to Estimate Cool Dwarf Fundamental Parameters from H-band Spectra Newton, Elisabeth R.; Charbonneau, David; Irwin, Jonathan; Mann, Andrew W. The Astrophysical Journal, Volume 800, Issue 2, article -
TESS Discovery of a Super-Earth and Three Sub-Neptunes Hosted by the Bright, Sun-Like Star HD 108236
Swarthmore College Works Physics & Astronomy Faculty Works Physics & Astronomy 2-1-2021 TESS Discovery Of A Super-Earth And Three Sub-Neptunes Hosted By The Bright, Sun-Like Star HD 108236 T. Daylan K. Pinglé J. Wright M. N. Günther K. G. Stassun Follow this and additional works at: https://works.swarthmore.edu/fac-physics See P nextart of page the forAstr additionalophysics andauthors Astr onomy Commons Let us know how access to these works benefits ouy Recommended Citation T. Daylan, K. Pinglé, J. Wright, M. N. Günther, K. G. Stassun, S. R. Kane, A. Vanderburg, D. Jontof-Hutter, J. E. Rodriguez, A. Shporer, C. X. Huang, T. Mikal-Evans, M. Badenas-Agusti, K. A. Collins, B. V. Rackham, S. N. Quinn, R. Cloutier, K. I. Collins, P. Guerra, Eric L.N. Jensen, J. F. Kielkopf, B. Massey, R. P. Schwarz, D. Charbonneau, J. J. Lissauer, J. M. Irwin, Ö Baştürk, B. Fulton, A. Soubkiou, B. Zouhair, S. B. Howell, C. Ziegler, C. Briceño, N. Law, A. W. Mann, N. Scott, E. Furlan, D. R. Ciardi, R. Matson, C. Hellier, D. R. Anderson, R. P. Butler, J. D. Crane, J. K. Teske, S. A. Shectman, M. H. Kristiansen, I. A. Terentev, H. M. Schwengeler, G. R. Ricker, R. Vanderspek, S. Seager, J. N. Winn, J. M. Jenkins, Z. K. Berta-Thompson, L. G. Bouma, W. Fong, G. Furesz, C. E. Henze, E. H. Morgan, E. Quintana, E. B. Ting, and J. D. Twicken. (2021). "TESS Discovery Of A Super-Earth And Three Sub-Neptunes Hosted By The Bright, Sun-Like Star HD 108236". -
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. -
David Charbonneau Curriculum Vitae (December 2013)
David Charbonneau Curriculum vitae (December 2013) Harvard University, Department of Astronomy, 60 Garden St., Cambridge, MA 02138 Email: [email protected] Web: www.cfa.harvard.edu/~dcharbon Office: 617 496 6515 Fax: 617 495 7049 Current Position Professor of Astronomy, Harvard University Education Harvard University, A. M. (Astronomy, 1999), Ph. D. (Astronomy, 2001) U. of Toronto, Honors B. Sc. with high distinction (Math, Physics, & Astronomy, 1996) Previous Positions Thomas D. Cabot Associate Professor of Astronomy, 2008-2009, Harvard University Assistant Professor of Astronomy, 2004-2007, Harvard University R. A. Millikan Postdoctoral Scholar in Astronomy, 2001-2004, California Institute of Technology Research Focus Detection and characterization of exoplanets with the goal of studying inhabited worlds Selected Awards The Raymond and Beverly Sackler Prize in the Physical Sciences, 2012 UC Alumni of Influence Award, University of Toronto, 2012 Fannie Cox Prize for Excellence in Science Teaching, Harvard University, 2011 Alan T. Waterman Award, National Science Foundation, 2009 Scientist of the Year, Discover Magazine, 2007 David and Lucile Packard Fellowship for Science and Engineering, 2006 – 2011 NASA Exceptional Scientific Achievement Medal, 2006 Alfred P. Sloan Research Fellow, 2006 – 2008 Robert J. Trumpler Award, Astronomical Society of the Pacific, 2004 Bart J. Bok Prize in Astronomy, Harvard University, 2004 Fireman Award for PhD Thesis in Astronomy, Harvard University, 2000 Merit Fellowship, Harvard University, -
Exoplanet Community Report
JPL Publication 09‐3 Exoplanet Community Report Edited by: P. R. Lawson, W. A. Traub and S. C. Unwin National Aeronautics and Space Administration Jet Propulsion Laboratory California Institute of Technology Pasadena, California March 2009 The work described in this publication was performed at a number of organizations, including the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (NASA). Publication was provided by the Jet Propulsion Laboratory. Compiling and publication support was provided by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government, or the Jet Propulsion Laboratory, California Institute of Technology. © 2009. All rights reserved. The exoplanet community’s top priority is that a line of probeclass missions for exoplanets be established, leading to a flagship mission at the earliest opportunity. iii Contents 1 EXECUTIVE SUMMARY.................................................................................................................. 1 1.1 INTRODUCTION...............................................................................................................................................1 1.2 EXOPLANET FORUM 2008: THE PROCESS OF CONSENSUS BEGINS.....................................................2 -
Jason A. Dittmann 51 Pegasi B Postdoctoral Fellow
Jason A. Dittmann 51 Pegasi b Postdoctoral Fellow Contact Massachusetts Institute of Technology MIT Kavli Institute: 37-438f 617-258-5928 (office) 70 Vassar St. 520-820-0928 (cell) Cambridge, MA 02139 [email protected] Education Harvard University, Cambridge, MA PhD, Astronomy and Astrophysics, May 2016 Advisor: David Charbonneau, PhD • University of Arizona, Tucson, AZ BS, Astronomy, Physics, May 2010 Advisor: Laird Close, PhD • Recent 51 Pegasi b Postdoctoral Fellow July 2017 – Present Research Earth and Planetary Science Department, MIT Positions Faculty Contact: Sara Seager Postdoctoral Researcher Feb 2017 – June 2017 Kavli Institute, MIT Supervisor: Sarah Ballard Postdoctoral Researcher July 2016 – Jan 2017 Center for Astrophysics, Harvard University Supervisor: David Charbonneau Research Assistant Sep 2010 – May 2016 Center for Astrophysics, Harvard University Advisors: David Charbonneau Publication 16 first and second authored publications Summary 22 additional co-authored publications 1 first-authored publication in Nature 1 co-authored publication in Nature Selected 51 Pegasi b Postdoctoral Fellowship 2017 – Present Awards and Pierce Fellowship 2010 – 2013 Honors Certificate of Distinction in Teaching 2012 Best Project Award, Physics Ugrd. Research Symp. 2009 Best Undergraduate Research (Steward Observatory) 2009 – 2010 Grants Principal Investigator, Hubble Space Telescope 2017, 10 orbits Awarded “Initial Reconaissance of a Transiting Rocky (maximum award) Planet in a Nearby M-Dwarf’s Habitable Zone” Principal Investigator, -
Recipe for a Habitable Planet
Recipe for a Habitable Planet Aomawa Shields Clare Boothe Luce Associate Professor Shields Center for Exoplanet Climate and Interdisciplinary Education (SCECIE) University of California, Irvine ASU School of Earth and Space Exploration (SESE) December 2, 2020 A moment to pause… Leading effectively during COVID-19 • Employees Need Trust and Compassion: Be Present, Even When You're Distant • Employees Need Stability: Prioritize Wellbeing Amid Disruption • Employees Need Hope: Anchor to Your "True North" From “3 strategies for leading effectively during COVID-19” (https://www.gallup.com/workplace/306503/strategies-leading-effectively-amid-covid.aspx) Hobbies: reading movies, shows knitting mixed media/collage violin tea yoga good restaurants spa days the beach hiking smelling flowers hanging with family BINGO Ill. Niklas Elmehed. Ill. Niklas Elmehed. © Nobel Media. © Nobel Media. RadialVelocity (m/s) Nobel Prize in Physics 2019 Mayor & Queloz 1995 https://exoplanets.nasa.gov/ As of December 2, 2020 Aomawa Shields Recipe for a Habitable World Credit: NASA NNASA’sASA’s KKeplerepler MMissionission TESS Transiting Exoplanet Survey Satellite Credit: NASA-JPL/Caltech Proxima Centauri b Credit: ESO/M. Kornmesser LHS 1140b Credit: ESO TOI 700d Credit: NASA TESS planets in the Earth-sized regime Credit: NASA’s Goddard Space Flight Center Which ones do we follow up on? 20 The Habitable Zone (Kasting et al. 1993, Kopparapu et al. 2013) ) Runaway greenhouse Maximum CO2 greenhouse Stellar Mass (M Mass Stellar Distance from Star (AU) Snowball Earth Many factors can affect planetary habitability Aomawa Shields Recipe for a Habitable World Liquid water Aomawa Shields Recipe for a Habitable World Isotopic Birth Tides Orbit Abundance Environ. -
When Extrasolar Planets Transit Their Parent Stars 701
Charbonneau et al.: When Extrasolar Planets Transit Their Parent Stars 701 When Extrasolar Planets Transit Their Parent Stars David Charbonneau Harvard-Smithsonian Center for Astrophysics Timothy M. Brown High Altitude Observatory Adam Burrows University of Arizona Greg Laughlin University of California, Santa Cruz When extrasolar planets are observed to transit their parent stars, we are granted unprece- dented access to their physical properties. It is only for transiting planets that we are permitted direct estimates of the planetary masses and radii, which provide the fundamental constraints on models of their physical structure. In particular, precise determination of the radius may indicate the presence (or absence) of a core of solid material, which in turn would speak to the canonical formation model of gas accretion onto a core of ice and rock embedded in a proto- planetary disk. Furthermore, the radii of planets in close proximity to their stars are affected by tidal effects and the intense stellar radiation. As a result, some of these “hot Jupiters” are significantly larger than Jupiter in radius. Precision follow-up studies of such objects (notably with the spacebased platforms of the Hubble and Spitzer Space Telescopes) have enabled direct observation of their transmission spectra and emitted radiation. These data provide the first observational constraints on atmospheric models of these extrasolar gas giants, and permit a direct comparison with the gas giants of the solar system. Despite significant observational challenges, numerous transit surveys and quick-look radial velocity surveys are active, and promise to deliver an ever-increasing number of these precious objects. The detection of tran- sits of short-period Neptune-sized objects, whose existence was recently uncovered by the radial- velocity surveys, is eagerly anticipated. -
Arxiv:2010.01074V2 [Astro-Ph.EP] 14 Jan 2021 Four Years
Draft version January 18, 2021 Typeset using LATEX twocolumn style in AASTeX63 Refining the transit timing and photometric analysis of TRAPPIST-1: Masses, radii, densities, dynamics, and ephemerides. Eric Agol ,1 Caroline Dorn ,2 Simon L. Grimm ,3 Martin Turbet ,4 Elsa Ducrot ,5 Laetitia Delrez ,6, 4, 5 Michaël Gillon ,5 Brice-Olivier Demory ,3 Artem Burdanov ,7 Khalid Barkaoui ,8, 5 Zouhair Benkhaldoun ,8 Emeline Bolmont ,4 Adam Burgasser ,9 Sean Carey ,10 Julien de Wit ,7 Daniel Fabrycky ,11 Daniel Foreman-Mackey ,12 Jonas Haldemann ,13 David M. Hernandez ,14 James Ingalls ,10 Emmanuel Jehin ,6 Zachary Langford ,1 Jérémy Leconte ,15 Susan M. Lederer ,16 Rodrigo Luger ,12 Renu Malhotra ,17 Victoria S. Meadows ,1 Brett M. Morris ,3 Francisco J. Pozuelos ,6, 5 Didier Queloz ,18 Sean N. Raymond ,15 Franck Selsis ,15 Marko Sestovic ,3 Amaury H.M.J. Triaud ,19 and Valerie Van Grootel 6 1Astronomy Department and Virtual Planetary Laboratory, University of Washington, Seattle, WA 98195 USA 2University of Zurich, Institute of Computational Sciences, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland 3Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, CH-3012, Bern, Switzerland 4Observatoire de Genève, Université de Genève, 51 Chemin des Maillettes, CH-1290 Sauverny, Switzerland 5Astrobiology Research Unit, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium 6Space Sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium 7Department -
Near-Resonance in a System of Sub-Neptunes from TESS
Near-resonance in a System of Sub-Neptunes from TESS The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Citation Quinn, Samuel N., et al.,"Near-resonance in a System of Sub- Neptunes from TESS." Astronomical Journal 158, 5 (November 2019): no. 177 doi 10.3847/1538-3881/AB3F2B ©2019 Author(s) As Published 10.3847/1538-3881/AB3F2B Publisher American Astronomical Society Version Final published version Citable link https://hdl.handle.net/1721.1/124708 Terms of Use Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The Astronomical Journal, 158:177 (16pp), 2019 November https://doi.org/10.3847/1538-3881/ab3f2b © 2019. The American Astronomical Society. All rights reserved. Near-resonance in a System of Sub-Neptunes from TESS Samuel N. Quinn1 , Juliette C. Becker2 , Joseph E. Rodriguez1 , Sam Hadden1 , Chelsea X. Huang3,45 , Timothy D. Morton4 ,FredC.Adams2 , David Armstrong5,6 ,JasonD.Eastman1 , Jonathan Horner7 ,StephenR.Kane8 , Jack J. Lissauer9, Joseph D. Twicken10 , Andrew Vanderburg11,46 , Rob Wittenmyer7 ,GeorgeR.Ricker3, Roland K. Vanderspek3 , David W. Latham1 , Sara Seager3,12,13,JoshuaN.Winn14 , Jon M. Jenkins9 ,EricAgol15 , Khalid Barkaoui16,17, Charles A. Beichman18, François Bouchy19,L.G.Bouma14 , Artem Burdanov20, Jennifer Campbell47, Roberto Carlino21, Scott M. Cartwright22, David Charbonneau1 , Jessie L. Christiansen18 , David Ciardi18, Karen A. Collins1 , Kevin I. Collins23,DennisM.Conti24,IanJ.M.Crossfield3, Tansu Daylan3,48 , Jason Dittmann3 , John Doty25, Diana Dragomir3,49 , Elsa Ducrot17, Michael Gillon17 , Ana Glidden3,12 , Robert F. -
Characterization of Low-Mass K2 Planet Hosts Using Near-Infrared Spectroscopy
Downloaded from orbit.dtu.dk on: Sep 27, 2021 Characterization of Low-mass K2 Planet Hosts Using Near-infrared Spectroscopy Martínez, Romy Rodríguez; Ballard, Sarah; Mayo, Andrew; Vanderburg, Andrew; Montet, Benjamin T.; Christiansen, Jessie L. Published in: Astrophysical Journal Link to article, DOI: 10.3847/1538-3881/ab3347 Publication date: 2019 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Martínez, R. R., Ballard, S., Mayo, A., Vanderburg, A., Montet, B. T., & Christiansen, J. L. (2019). Characterization of Low-mass K2 Planet Hosts Using Near-infrared Spectroscopy. Astrophysical Journal, 158(4), [135]. https://doi.org/10.3847/1538-3881/ab3347 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. The Astronomical Journal, 158:135 (14pp), 2019 October https://doi.org/10.3847/1538-3881/ab3347 © 2019. The American Astronomical Society. All rights reserved. Characterization of Low-mass K2 Planet Hosts Using Near-infrared Spectroscopy Romy Rodríguez Martínez1, Sarah Ballard2,9, Andrew Mayo3,4,5,10,11 , Andrew Vanderburg6,12 , Benjamin T. -
Secure TTV Mass Measurements: Ten Kepler Exoplanets Between 3 and 8 M⊕ with Diverse Densities and Incident Fluxes” (2016, Apj, 820, 39)
The Astrophysical Journal, 849:73 (2pp), 2017 November 1 https://doi.org/10.3847/1538-4357/aa8d19 © 2017. The American Astronomical Society. All rights reserved. Erratum: “Secure TTV Mass Measurements: Ten Kepler Exoplanets between 3 and 8 M⊕ with Diverse Densities and Incident Fluxes” (2016, ApJ, 820, 39) Daniel Jontof-Hutter1,2 , Eric B. Ford2 , Jason F. Rowe3 , Jack J. Lissauer4, Daniel C. Fabrycky5, Christa Van Laerhoven6, Eric Agol7 , Katherine M. Deck8, Tomer Holczer9 , and Tsevi Mazeh9 1 Department of Physics, University of the Pacific, Stockton, CA 95211, USA; djontofhutter@pacific.edu 2 Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA 3 Department of Physics and Astronomy, Bishop’s University, Sherbrooke, Quebec J1M IZ7, Canada 4 Space Science and Astrobiology Division, MS 245-3, NASA Ames Research Center, Moffett Field, CA 94035, USA 5 Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA 6 Canadian Institute for Theoretical Astrophysics, 60 St. George Street, Toronto, ON M5S 3H8, Canada 7 Department of Astronomy, University of Washington, Seattle, WA 98195, USA 8 Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA 9 School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel Received 2017 August 31; accepted 2017 September 12; published 2017 November 2 Some of the figures in the original manuscript showing the joint posteriors of esinw of neighboring planets are incorrect. The original figures erroneously displayed joint posteriors of ecosw. The originals and their corrections are plotted below.