ASI 2018 Abstract Book

Total Page:16

File Type:pdf, Size:1020Kb

ASI 2018 Abstract Book XXXVI Meeting of Astronomical Society of India Department of Astronomy, Osmania University, Hyderabad 5 – 9 February 2018 Abstract Book Table of Contents Title Page No. 6th February 2018 Special Lecture - Parameswaran Ajith - Einstein’s Messengers 1 Parallel Session – Stars, ISM and the Galaxy I 2 Lokesh Dewangan - Observational Signatures of Cloud-Cloud Collision in the 2 Galactic Star-Forming Regions (I) Manash Samal - Understanding star formation in filamentary clouds - a case 3 study on the G182.4+00.3 cloud Veena - Understanding the structure, evolution and kinematics of the IRDC 4 G333.73+0.37 Jessy Jose - The youngest free-floating planets: A transformative survey of 5 nearby star forming regions with the novel W-band filter at CFHT-WIRCam Mayank Narang - Are Exoplanet properties determined by the host star? 6 Parallel Session – Extragalactic Astronomy 1 7 Rupak Roy - The Nuclear-transients 7 Agniva Roychowdhury - Study of multi-band X-Ray Time Variability of Mrk 421 8 using ASTROSAT Brajesh Kumar - Long term optical monitoring of the transitional Type Ic/BL-Ic 9 supernova ASASSN-16fp (SN 2016coi) Prajval Shastri - Multi-wavelength Views of Accreting Supermassive Black Holes 9 using ASTROSAT Pranjupriya Goswami - X-ray spectral curvature of high energy blazars with 10 NuSTAR observations Bindu Rani - Wobbling jets in active super-massive black holes 10 Parallel Session – General Relativity and Cosmology I 11 Pravabati Chingangbam - Probing length and time scales of the EoR using 11 Minkowski Tensors (I) Akash Kumar Patwa - On detecting EoR using drift scan data from MWA 11 Table of Contents Shamik Ghosh - Current status of the radio dipole and its measurement 12 strategy with the SKA Debanjan Sarkar - Modelling redshift-space distortion (RSD) in the post- 13 reionization HI 21-cm power spectrum Dinesh Raut - Measuring the reionization 21cm fluctuations using clustering 14 wedges. Parallel Session – Stars, ISM and the Galaxy II 15 Saurabh Sharma - Multi-wavelength studies of star forming regions(I) 15 Sonu Tabitha - Probing Early Phases of High Mass Stars with 6.7 GHz Methanol 16 Masers Gourav Banerjee - Spectroscopic Studies of Galactic Field Be stars through 16 CaII and FeII emission lines Avrajit Bandyopadhyay - Connection between Globular clusters and Galactic 17 halo Gaurav Singh - Study of Blue Straggler Stars in Galactic Globular Cluster NGC 18 6656 Parallel Session – Extragalactic Astronomy II 19 Saumyadip Samui - Cosmic Ray driven outflows from high-z galaxies (I) 19 Dipanjan Mukherjee - Impact of relativistic jets from AGNs on their host 20 galaxies Ramij Raja - Studying merging phenomena of massive clusters through multi- 21 wavelength study of MACSJ0417.5-1154 Ramya - Evolving perspectives on the formation and evolution of Giant Low 21 Surface Brightness galaxies Naslim Neelamkodan - ALMA reveals molecular cloud N55 in the Large 22 Magellanic Cloud as a site of massive star formation 7th February 2018 Plenary Session 1 - TIME DOMAIN ASTRONOMY 23 Table of Contents G. C. Anupama - Studies of Supernovae in the era of future large facilities 23 Biswajit Paul - X-ray timing from milliseconds to decades and time resolved 24 spectroscopy/polarimetry Shabnam Iyyani - Gamma ray burst: A window to the extraordinary and 24 extreme Universe Parallel Session – Stars, ISM and the Galaxy III 25 Sabyasachi Pal - Low frequency radio emission from extra-solar planets using 25 TIFR GMRT Sky Survey Bhaswati Bhattacharya - Searching for pulsars with GMRT : Fermi-directed 26 search and GHRSS survey Sushan Konar - The Nulling Pulsars : A statistical study 27 Mayur Bhaskar Shende - Formation of Episodic Jets from Black Hole Accretion 27 Disks Manoneeta C - The peculiar bursting behavior of magnetars and its 28 implications Shilpa Sarkar - Two-temperature flows around compact objects 29 Parallel Session – Extragalactic Astronomy III 30 Resmi Lekshmi - The Gamma Ray Burst from the first binary Neutron Star merger 30 (I) Kuntal Misra - Merger ejecta in short gamma ray bursts 30 Debdutta Paul - Luminosity function of Gamma Ray Bursts 31 Muhammed Saleem - Short-GRB afterglows in coincidence with gravitational 32 waves from Binary Neutron Star mergers Ruchika - The group environment in the Coma supercluster 32 Table of Contents Parallel Session – General Relativity and Cosmology II 33 Tuhin Ghosh - Measurements of Degree-scale B-mode polarization with BICEP2, 33 Keck Array and Planck (I) Kanhaiya Lal Pandey - Role of primordial black holes in SMBH formation at high 33 $z$ Lankeswar Dey - Constraining higher order gravitational wave back-reaction 34 in blazar OJ287 black hole binary Subhabrata Majumdar - Cosmological Missing Baryons hidden in CGM 35 Prasanta Kumar Das - Fermionic dark matter and supernova SN1987A cooling 35 Parallel Session – Stars, ISM and the Galaxy IV 36 Anindita Mondal - Calculation of H and He emission line fluxes in Novae 36 spectra Firoza Sutaria - UV studies of X-ray and optically bright SNRs 37 Barnali Das - Discovery of Electron Cyclotron MASER Emission from the 38 magnetic chemically peculiar star HD 133880 Subhajeet Karmakar - A Very Long and Hot X-ray Superflare on an RS CVn 39 type eclipsing binary SZ PSc K. Sriram - Investigating the dynamical instability criterion for asynchronous 40 binary systems Malu S. - Evidence of a tertiary component in Kepler contact binary K2 EPIC 41 2073314 Parallel Session - Instrumentation and Techniques I 42 Abhijit Chakraborty - How to achieve sub-1m/s precision Radial Velocity using 42 a Stabilized HR Spectrograph Shashi Bushan Pandey - 4KX4K CCD Imager for the 3.6m DOT and first light 42 results Archita Rai - Near-Infrared Imaging Spectro-Polarimeter (NISP) instrument for 43 PRL 2.5-m telescope. Table of Contents Kaushal Buch - Initial Developments in the Design and Implementation of FPA 44 Beamformer for the Expanded GMRT Yogesh Wadadekar - GMRT Archive Processing Project 45 8th February 2018 Plenary Session 2 - SCIENCE WITH THE UPGRADED GMRT 46 Yashwant Gupta - The upgraded GMRT: Overview and Prospects for Pulsar 47 Studies Ruta Kale - Clusters of galaxies with the upgraded GMRT 47 Nirupam Roy - Spectral line observations with the upgraded GMRT 48 Thesis presentations I 49 Rahul Kothari - On the Study of CMB Dipole Modulation and Its Relationship 49 with Spatial Inhomogeneity and Spacetime Noncommutativity Visweshwar Ram Marthi - Towards detecting redshifted HI with the Ooty Wide 50 Field Array Samir Choudhuri - Visibility-based Power Spectrum Estimation for Low- 51 Frequency Radio Interferometric Observations Pragati Pradhan - Pulse Profile Studies and Hard X-Ray Properties of Neutron 52 Stars Thesis presentations II 53 Tirtha Pratim Das - Study of noble gases in lunar exosphere using the CHACE- 53 MIP observation of Chandrayaan-1 Sowmya Krishnamurthy - Scattering polarization with Paschen--Back effect as 54 a tool to diagnose the magnetic structuring of the solar atmosphere Krishna Kumar Pandey - Study of solar activity during solar cycles 21-23 55 Shubham Srivastav - Observational Studies of Low Redshift Supernovae 56 Table of Contents Parallel Session - Sun and the Solar System I 57 Abhishek Srivastava - On Understanding New Heating Candidates for Sun's 57 Corona (I) Dipankar Banerjee - On Long term study of the sun using Kodaikanal Digitized 57 data Divya Oberoi - Solar radio astronomy at low radio frequencies: The dawn of a 58 new era Rohit Sharma - Characterising weak low radio frequency emission from the Sun 59 Ayesha Maryam Mazarbhuiya - Polarimetric study of comet C/2015 V2 60 (Johnson) at low phase angle Parallel Session - Extragalactic Astronomy IV 61 Dharam Vir Lal - Cluster and radio relic: A sharp view using upgraded GMRT 61 K. S. Dwarkanath - Discovery of radio relics in the outskirts of the low-mass 61 galaxy cluster Abell 168 Veeresh Singh - Discovery of radio relics in the outskirts of the low-mass galaxy 62 cluster Abell 168 Bhargav Vaidya - Non-thermal Emission and Polarisation from AGN Jets 62 Sitha K. Jagan - Interpretating the synchrotron spectral curvature of PKS 2155- 63 304 Sonkamble Satish Shripati - Metallicity enrichment in hot gas environments via 63 radio jet Parallel Session - Instrumentation and Techniques II 64 Ajay Ratheesh - Astrosat Cadmium Zinc Telluride Imager as a Short GRB 64 Detector Madhuri Siriprolu - Development and Studies on TPC GEM X-ray Polarimeter 65 Shiv Kumar Goyal - Supra Thermal & Energetic Particle Spectrometer (STEPS), 66 onboard Aditya-L1 mission Table of Contents Public Talk - Biman Nath - A dung beetle's view of the Milky Way 67 9th February 2018 Plenary Session 3 - GALAXIES AND THE IGM 68 Aseem Paranjape - Recent insights into dark halo assembly and implications 68 for galaxy evolution Arunima Bannerjee - Origin of LSB galaxies: A dynamical study 69 Biman Nath - Galaxies and the intergalactic medium 69 Parallel Session – Sun and the Solar System II 70 Aveek Sarkar - Numerical Simulation of active region MHD oscillations and 70 coronal loop implosion Dattaraj Dhuri - Prediction of solar flares from photospheric magnetic field 70 using machine learning Jishnu Bhattacharya - Iterative inversion of synthetic travel times successful at 71 recovering sub-surface profiles of supergranular flows Nishtha Sachdeva - Proxies for CME acceleration 71 K Sasikumar Raja - Turbulent density fluctuations and proton heating rate in 72 the solar wind from $9-20~R_{odot}$ Debi Prasad Choudhary - Flows along Super-Penumbral Fibrils of Sunspots 72 Parallel Session - Extragalactic Astronomy V 73 Smriti Mahajan - Blue spheroids:
Recommended publications
  • Our Place in the Universe (239 Pages)
    OUR PLACE IN THE uNIVERSE Norman k. Glendenning Lawrence Berkeley National Laboratiry World scientific Imperial College Press Published by Imperial College Press 57 Shelton Street Covent Garden London WC2H 9HE and World Scientific Publishing Co. Pte. Ltd. 5 Toh Tuck Link, Singapore 596224 USA office: 27 Warren Street, Suite 401-402, Hackensack, NJ 07601 UK office: 57 Shelton Street, Covent Garden, London WC2H 9HE Library of Congress Cataloging-in-Publication Data Glendenning, Norman K. Our place in the universe / Norman K. Glendenning. p. cm. Includes bibliographical references and index. ISBN-13 978-981-270-068-1 -- ISBN-10 981-270-068-4 ISBN-13 978-981-270-069-8 (pbk) -- ISBN-10 981-270-069-2 (pbk) 1. Cosmology. 2. Galaxies--Formation. 3. Galaxies--Evolution. 4. Astrophysics. 5. Solar system--Origin. I. Title. QB981 .G585 2007 523.1--dc22 British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library. Cover picture: The Horsehead is a reflection nebula; it is located in the much larger Orion Nebula, an immense molecular cloud of primordial hydrogen and helium, together dust cast off by the surfaces of stars. The clouds that form the Horsehead are illuminated from behind by a stellar nursery of young bright stars. Credit: Photo taken at Mauna Kea, Hawaii with the Canada-France-Hawaii Telescope. Copyright © 2007 by Imperial College Press and World Scientific Publishing Co. Pte. Ltd. All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Publisher.
    [Show full text]
  • Navigating North America
    deep-sky wonders by sue french Navigating North America the north america nebula is one of the most impres- NGC 6997 is the most obvious cluster within the confines sive nebulae glowing in our sky. This nebula’s remarkable of the North America Nebula. To me, it looks as though it’s resemblance to the North American continent makes it bet- been plunked down on the border between Ohio and West ter known by its common name — bestowed not by a resi- Virginia. Putting 4.8-magnitude 57 Cygni at the western dent of North America, but by German astrono- edge of a low-power eyepiece field should bring NGC 6997 Knowing mer Max Wolf. In 1890 Wolf became the first into view. My 4.1-inch scope at 17× displays a dusting of person to photograph the North America Nebula, very faint stars. At 47×, it’s a pretty cluster, rich in faint your and for many years this remained the only way to stars, spanning 10′. Through my 10-inch reflector, I count geography fully appreciate its distinctive shape. With today’s 40 stars, mostly of magnitude 11 and 12. Many are abundance of short-focal-length telescopes and arranged in two incomplete circles, one inside the other. puts you wide-field eyepieces, we can more readily enjoy Is NGC 6997 actually involved in the North America one step this large nebula visually. Nebula? It’s difficult to tell because the distances are poorly The North America Nebula, NGC 7000 or Cald- known. A journal article earlier this year puts NGC 6997 at ahead in well 20, is certainly easy to locate.
    [Show full text]
  • BRAS Newsletter August 2013
    www.brastro.org August 2013 Next meeting Aug 12th 7:00PM at the HRPO Dark Site Observing Dates: Primary on Aug. 3rd, Secondary on Aug. 10th Photo credit: Saturn taken on 20” OGS + Orion Starshoot - Ben Toman 1 What's in this issue: PRESIDENT'S MESSAGE....................................................................................................................3 NOTES FROM THE VICE PRESIDENT ............................................................................................4 MESSAGE FROM THE HRPO …....................................................................................................5 MONTHLY OBSERVING NOTES ....................................................................................................6 OUTREACH CHAIRPERSON’S NOTES .........................................................................................13 MEMBERSHIP APPLICATION .......................................................................................................14 2 PRESIDENT'S MESSAGE Hi Everyone, I hope you’ve been having a great Summer so far and had luck beating the heat as much as possible. The weather sure hasn’t been cooperative for observing, though! First I have a pretty cool announcement. Thanks to the efforts of club member Walt Cooney, there are 5 newly named asteroids in the sky. (53256) Sinitiere - Named for former BRAS Treasurer Bob Sinitiere (74439) Brenden - Named for founding member Craig Brenden (85878) Guzik - Named for LSU professor T. Greg Guzik (101722) Pursell - Named for founding member Wally Pursell
    [Show full text]
  • Arxiv:2012.09981V1 [Astro-Ph.SR] 17 Dec 2020 2 O
    Contrib. Astron. Obs. Skalnat´ePleso XX, 1 { 20, (2020) DOI: to be assigned later Flare stars in nearby Galactic open clusters based on TESS data Olga Maryeva1;2, Kamil Bicz3, Caiyun Xia4, Martina Baratella5, Patrik Cechvalaˇ 6 and Krisztian Vida7 1 Astronomical Institute of the Czech Academy of Sciences 251 65 Ondˇrejov,The Czech Republic(E-mail: [email protected]) 2 Lomonosov Moscow State University, Sternberg Astronomical Institute, Universitetsky pr. 13, 119234, Moscow, Russia 3 Astronomical Institute, University of Wroc law, Kopernika 11, 51-622 Wroc law, Poland 4 Department of Theoretical Physics and Astrophysics, Faculty of Science, Masaryk University, Kotl´aˇrsk´a2, 611 37 Brno, Czech Republic 5 Dipartimento di Fisica e Astronomia Galileo Galilei, Vicolo Osservatorio 3, 35122, Padova, Italy, (E-mail: [email protected]) 6 Department of Astronomy, Physics of the Earth and Meteorology, Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava, Mlynsk´adolina F-2, 842 48 Bratislava, Slovakia 7 Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, H-1121 Budapest, Konkoly Thege Mikl´os´ut15-17, Hungary Received: September ??, 2020; Accepted: ????????? ??, 2020 Abstract. The study is devoted to search for flare stars among confirmed members of Galactic open clusters using high-cadence photometry from TESS mission. We analyzed 957 high-cadence light curves of members from 136 open clusters. As a result, 56 flare stars were found, among them 8 hot B-A type ob- jects. Of all flares, 63 % were detected in sample of cool stars (Teff < 5000 K), and 29 % { in stars of spectral type G, while 23 % in K-type stars and ap- proximately 34% of all detected flares are in M-type stars.
    [Show full text]
  • Star Formation in the “Gulf of Mexico”
    A&A 528, A125 (2011) Astronomy DOI: 10.1051/0004-6361/200912671 & c ESO 2011 Astrophysics Star formation in the “Gulf of Mexico” T. Armond1,, B. Reipurth2,J.Bally3, and C. Aspin2, 1 SOAR Telescope, Casilla 603, La Serena, Chile e-mail: [email protected] 2 Institute for Astronomy, University of Hawaii at Manoa, 640 N. Aohoku Place, Hilo, HI 96720, USA e-mail: [reipurth;caa]@ifa.hawaii.edu 3 Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309, USA e-mail: [email protected] Received 9 June 2009 / Accepted 6 February 2011 ABSTRACT We present an optical/infrared study of the dense molecular cloud, L935, dubbed “The Gulf of Mexico”, which separates the North America and the Pelican nebulae, and we demonstrate that this area is a very active star forming region. A wide-field imaging study with interference filters has revealed 35 new Herbig-Haro objects in the Gulf of Mexico. A grism survey has identified 41 Hα emission- line stars, 30 of them new. A small cluster of partly embedded pre-main sequence stars is located around the known LkHα 185-189 group of stars, which includes the recently erupting FUor HBC 722. Key words. Herbig-Haro objects – stars: formation 1. Introduction In a grism survey of the W80 region, Herbig (1958) detected a population of Hα emission-line stars, LkHα 131–195, mostly The North America nebula (NGC 7000) and the adjacent Pelican T Tauri stars, including the little group LkHα 185 to 189 located nebula (IC 5070), both well known for the characteristic shapes within the dark lane of the Gulf of Mexico, thus demonstrating that have given rise to their names, are part of the single large that low-mass star formation has recently taken place here.
    [Show full text]
  • A Basic Requirement for Studying the Heavens Is Determining Where In
    Abasic requirement for studying the heavens is determining where in the sky things are. To specify sky positions, astronomers have developed several coordinate systems. Each uses a coordinate grid projected on to the celestial sphere, in analogy to the geographic coordinate system used on the surface of the Earth. The coordinate systems differ only in their choice of the fundamental plane, which divides the sky into two equal hemispheres along a great circle (the fundamental plane of the geographic system is the Earth's equator) . Each coordinate system is named for its choice of fundamental plane. The equatorial coordinate system is probably the most widely used celestial coordinate system. It is also the one most closely related to the geographic coordinate system, because they use the same fun­ damental plane and the same poles. The projection of the Earth's equator onto the celestial sphere is called the celestial equator. Similarly, projecting the geographic poles on to the celest ial sphere defines the north and south celestial poles. However, there is an important difference between the equatorial and geographic coordinate systems: the geographic system is fixed to the Earth; it rotates as the Earth does . The equatorial system is fixed to the stars, so it appears to rotate across the sky with the stars, but of course it's really the Earth rotating under the fixed sky. The latitudinal (latitude-like) angle of the equatorial system is called declination (Dec for short) . It measures the angle of an object above or below the celestial equator. The longitud inal angle is called the right ascension (RA for short).
    [Show full text]
  • LIST of PUBLICATIONS Aryabhatta Research Institute of Observational Sciences ARIES (An Autonomous Scientific Research Institute
    LIST OF PUBLICATIONS Aryabhatta Research Institute of Observational Sciences ARIES (An Autonomous Scientific Research Institute of Department of Science and Technology, Govt. of India) Manora Peak, Naini Tal - 263 129, India (1955−2020) ABBREVIATIONS AA: Astronomy and Astrophysics AASS: Astronomy and Astrophysics Supplement Series ACTA: Acta Astronomica AJ: Astronomical Journal ANG: Annals de Geophysique Ap. J.: Astrophysical Journal ASP: Astronomical Society of Pacific ASR: Advances in Space Research ASS: Astrophysics and Space Science AE: Atmospheric Environment ASL: Atmospheric Science Letters BA: Baltic Astronomy BAC: Bulletin Astronomical Institute of Czechoslovakia BASI: Bulletin of the Astronomical Society of India BIVS: Bulletin of the Indian Vacuum Society BNIS: Bulletin of National Institute of Sciences CJAA: Chinese Journal of Astronomy and Astrophysics CS: Current Science EPS: Earth Planets Space GRL : Geophysical Research Letters IAU: International Astronomical Union IBVS: Information Bulletin on Variable Stars IJHS: Indian Journal of History of Science IJPAP: Indian Journal of Pure and Applied Physics IJRSP: Indian Journal of Radio and Space Physics INSA: Indian National Science Academy JAA: Journal of Astrophysics and Astronomy JAMC: Journal of Applied Meterology and Climatology JATP: Journal of Atmospheric and Terrestrial Physics JBAA: Journal of British Astronomical Association JCAP: Journal of Cosmology and Astroparticle Physics JESS : Jr. of Earth System Science JGR : Journal of Geophysical Research JIGR: Journal of Indian
    [Show full text]
  • Mandm Direct Spreads
    Touring the moonlit Spring Skies... Observations from Saturday 11th May 2019 8.30pm - 2.15am Equipment used: TEC 140, tracking Nova Hitch Alt-Az with slow-mo controls and encoders on a Berlebach Planet, iPad Air2 running SkySafari Pro 5, Nexus WiFi, 10 and 21mm Ethos, Baader BBHS diagonal, Lumicon 2” UHC and OIII filters in a True-Tech manual filter wheel. Mixed forecasts, Clear Outside suggesting 27% cloud around midnight, Xasteria saying clear, Clear Outside loaded from within Xasteria offering something in-between (how do you get that, hey!?) and Meteoblue forecasting clear skies from 11 but with poor ‘Index 2’ and Jet Stream readings.... Having neglected visual astronomy for many months (having spent my time finally getting the imaging gear to play ball), I spent forty odd minutes re-learning how to set everything back up - in fact, it be on offer with the moon in attendance... took longer than it does to wheel out the imaging gear. Times have changed, my usual (100% visual) observing buddy was having a go at imaging (spectroscopy), so I was on my own for this evening. It meant I’d have to keep my own notes for a change, but also allow me to go at my own pace as I reacquainted myself with the night sky. By 8.30 I was ready to go, clear skies, still a shade of blue with a half moon hanging over in the south western sky. Temperature rapidly dropping. 21mm eyepiece in place easily held the entire moon. Fantastic details, sharp, contrasty, zero colour..
    [Show full text]
  • Open Clusters
    Open Clusters Open clusters (also known as galactic clusters) are of tremendous importance to the science of astronomy, if not to astrophysics and cosmology generally. Star clusters serve as the "laboratories" of astronomy, with stars now all at nearly the same distance and all created at essentially the same time. Each cluster thus is a running experiment, where we can observe the effects of composition, age, and environment. We are hobbled by seeing only a snapshot in time of each cluster, but taken collectively we can understand their evolution, and that of their included stars. These clusters are also important tracers of the Milky Way and other parent galaxies. They help us to understand their current structure and derive theories of the creation and evolution of galaxies. Just as importantly, starting from just the Hyades and the Pleiades, and then going to more distance clusters, open clusters serve to define the distance scale of the Milky Way, and from there all other galaxies and the entire universe. However, there is far more to the study of star clusters than that. Anyone who has looked at a cluster through a telescope or binoculars has realized that these are objects of immense beauty and symmetry. Whether a cluster like the Pleiades seen with delicate beauty with the unaided eye or in a small telescope or binoculars, or a cluster like NGC 7789 whose thousands of stars are seen with overpowering wonder in a large telescope, open clusters can only bring awe and amazement to the viewer. These sights are available to all.
    [Show full text]
  • Arxiv:2006.10868V2 [Astro-Ph.SR] 9 Apr 2021 Spain and Institut D’Estudis Espacials De Catalunya (IEEC), C/Gran Capit`A2-4, E-08034 2 Serenelli, Weiss, Aerts Et Al
    Noname manuscript No. (will be inserted by the editor) Weighing stars from birth to death: mass determination methods across the HRD Aldo Serenelli · Achim Weiss · Conny Aerts · George C. Angelou · David Baroch · Nate Bastian · Paul G. Beck · Maria Bergemann · Joachim M. Bestenlehner · Ian Czekala · Nancy Elias-Rosa · Ana Escorza · Vincent Van Eylen · Diane K. Feuillet · Davide Gandolfi · Mark Gieles · L´eoGirardi · Yveline Lebreton · Nicolas Lodieu · Marie Martig · Marcelo M. Miller Bertolami · Joey S.G. Mombarg · Juan Carlos Morales · Andr´esMoya · Benard Nsamba · KreˇsimirPavlovski · May G. Pedersen · Ignasi Ribas · Fabian R.N. Schneider · Victor Silva Aguirre · Keivan G. Stassun · Eline Tolstoy · Pier-Emmanuel Tremblay · Konstanze Zwintz Received: date / Accepted: date A. Serenelli Institute of Space Sciences (ICE, CSIC), Carrer de Can Magrans S/N, Bellaterra, E- 08193, Spain and Institut d'Estudis Espacials de Catalunya (IEEC), Carrer Gran Capita 2, Barcelona, E-08034, Spain E-mail: [email protected] A. Weiss Max Planck Institute for Astrophysics, Karl Schwarzschild Str. 1, Garching bei M¨unchen, D-85741, Germany C. Aerts Institute of Astronomy, Department of Physics & Astronomy, KU Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium and Department of Astrophysics, IMAPP, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands G.C. Angelou Max Planck Institute for Astrophysics, Karl Schwarzschild Str. 1, Garching bei M¨unchen, D-85741, Germany D. Baroch J. C. Morales I. Ribas Institute of· Space Sciences· (ICE, CSIC), Carrer de Can Magrans S/N, Bellaterra, E-08193, arXiv:2006.10868v2 [astro-ph.SR] 9 Apr 2021 Spain and Institut d'Estudis Espacials de Catalunya (IEEC), C/Gran Capit`a2-4, E-08034 2 Serenelli, Weiss, Aerts et al.
    [Show full text]
  • The Star Cluster Collinder 232 in the Carina Complex and Its Relation to Trumpler 14/16 Almost Coeval
    Astronomy & Astrophysics manuscript no. AA0335 August 15, 2018 (DOI: will be inserted by hand later) The star cluster Collinder 232 in the Carina complex and its relation to Trumpler 14/16⋆ Giovanni Carraro1,2, Martino Romaniello2, Paolo Ventura3, and Ferdinando Patat2 1 Dipartimento di Astronomia, Universit`adi Padova, vicolo dell’Osservatorio 2, I-35122, Padova, Italy 2 European Southern Observatory, Karl-Schwarzschild-Str 2, D-85748 Garching b. M¨unchen, Germany 3 Osservatorio Astronomico di Roma, Via di Frascati 33, I-00040, Monte Porzio Catone, Italy Received September 2003; accepted Abstract. In this paper we present and analyze new CCD UBV RI photometry down to V ≈ 21 in the region of the young open cluster Collinder 232, located in the Carina spiral arm, and discuss its relationship to Trumpler 14 and Trumpler 16, the two most prominent young open clusters located in the core of NGC 3372 (the Carina Nebula). First of all we study the extinction pattern in the region. We find that the total to selective absorption ratio RV differs from cluster to cluster, being 3.48 ± 0.11, 4.16 ± 0.07 and 3.73 ± 0.01 for Trumpler 16, Trumpler 14 and Collinder 232, respectively. Then we derive individual reddenings and intrinsic colours and magnitudes using the method devised by Romaniello et al. (2002). Ages, age spreads and distances are then estimated by comparing the Colour Magnitude Diagrams and the Hertzsprung-Russel diagram with post and pre-main sequence tracks and isochrones. We find that Trumpler 14 and Collinder 232 lie at the same distance from the Sun (about 2.5 kpc), whereas Trumpler 16 lies much further out, at about 4 kpc from the Sun.
    [Show full text]
  • UBV RI Photometry of NGC 3114, Collinder 228 and Vdb-Hagen 99?
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE Astronomy & Astrophysics manuscript no. provided by CERN Document Server (will be inserted by hand later) Star clusters in the Carina complex: UBV RI photometry of NGC 3114, Collinder 228 and vdB-Hagen 99? G. Carraro1;2 and F. Patat2 1 Dipartimento di Astronomia, Universit´a di Padova, vicolo dell’Osservatorio 5, I-35122, Padova, Italy 2 European Southern Observatory, Karl-Schwartzschild-Str 2, D-85748 Garching b. M¨unchen, Germany e-mail: [email protected],[email protected] Received ; accepted Abstract. In this paper we present and analyze CCD UBVRI photometry in the region of the three young open clusters NGC 3114, Collinder 228, and vdB-Hagen 99, located in the Carina spiral feature. NGC 3114 lies in the outskirts of the Carina nebula. We found 7 star members in a severely contaminated field, and obtain a distance of 950 pc and an age less than 3 108 yrs. Collinder 228 is a younger cluster (8 106 yrs), located in× front of the Carina nebula complex, for which we identify 11 new members and suggest that 30%× of the stars are probably binaries. As for vdB-Hagen 99, we add 4 new members, confirming that it is a nearby cluster located at 500 pc from the Sun and projected toward the direction of the Carina spiral arm. Key words. Stars: evolution- Stars: general- Stars: Hertzsprung-Russel (HR) and C-M diagrams -Open clusters and associations : NGC 3114 : individual -Open clusters and associations : Collinder 228 : individual -Open clusters and associations : vdB-Hagen 99 : individual 1.
    [Show full text]