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SDSS-IV MaNGA: The Nature of an Off-galaxy H-alpha Blob-A Multiwavelength View of Offset Cooling in a Merging Galaxy Group
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| DOI | 10.3847/1538-4357/ABB80C | ||||
| Año | 2020 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
Galaxies in dense environments, such as groups and clusters, experience various processes by which galaxies gain and lose gas. Using data from the SDSS-IV MaNGA survey, we previously reported the discovery of a giant (68 kpc in diameter) Ha blob, Totoro, about 8 kpc away from a pair of galaxies (Satsuki and Mei) residing in a galaxy group that is experiencing a group-group merger. Here, we combine interferometric (CO)-C-12(1-0) molecular gas data, new wide-field Ha, u-band data, and published X-ray data to determine the origin of the blob. Several scenarios are discussed to account for its multiwavelength properties, including (1) Ha gas being stripped from the galaxy Satsuki by ram pressure, (2) a separated low-surface-brightness galaxy, (3) gas being ejected or ionized by an active galactic nucleus (AGN), and (4) a cooling intragroup medium (IGM). Scenarios (1) and (2) are less favored by the present data. Scenario (3) is also less likely as there is no evidence for an active ongoing AGN in the host galaxy. We find that the CO (cold) and Ha (warm) gas coexist with X-ray (hot) structures; moreover, the derived cooling time is within the regime where molecular and Ha gas are expected. The coexistence of gas with different temperatures also agrees with that of cooling gas in other systems. Our multiwavelength results strongly suggest that the CO and Ha gas are the product of cooling from the IGM at its current location, i.e., cooling has occurred, and may be ongoing, well outside the host-galaxy core.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Pan, Hsi An | - |
Acad Sinica - Taiwán
Academia Sinica, Institute of Astronomy and Astrophysics - Taiwán Max Planck Institute for Astronomy - Alemania |
| 2 | Lin, Lihwai | - |
Acad Sinica - Taiwán
Max Planck Inst Astron - Alemania Academia Sinica, Institute of Astronomy and Astrophysics - Taiwán |
| 3 | Hsieh, Bau-Ching | - |
Acad Sinica - Taiwán
Academia Sinica, Institute of Astronomy and Astrophysics - Taiwán |
| 4 | Michalowski, Michal J. | Hombre |
Adam Mickiewicz Univ - Polonia
Uniwersytet im. Adama Mickiewicza w Poznaniu - Polonia |
| 5 | Bothwell, Matthew S. | Hombre |
UNIV CAMBRIDGE - Reino Unido
Department of Physics - Reino Unido University of Cambridge - Reino Unido |
| 6 | Huang, Song | - |
Univ Calif Santa Cruz - Estados Unidos
Univ Tokyo - Japón Princeton Univ - Estados Unidos University of California, Santa Cruz - Estados Unidos The University of Tokyo - Japón Princeton University - Estados Unidos |
| 7 | Moiseev, Alexei V. | Hombre |
Russian Acad Sci - Rusia
Special Astrophysical Observatory, Russian Academy of Sciences - Rusia Space Research Institute of the Russian Academy of Sciences - Rusia |
| 8 | Oparin, Dmitry | Hombre |
Russian Acad Sci - Rusia
Special Astrophysical Observatory, Russian Academy of Sciences - Rusia |
| 9 | O'Sullivan, E. | Hombre |
Harvard Smithsonian Ctr Astrophys - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 10 | Worrall, Diana M. | Mujer |
Univ Bristol - Reino Unido
University of Bristol - Reino Unido |
| 11 | SANCHEZ-SANCHEZ, SEBASTIAN FRANCISCO | Hombre |
Univ Nacl Autonoma Mexico - México
Universidad Nacional Autónoma de México - México |
| 12 | Gwyn, Stephen | Hombre |
Natl Res Council Canada - Canadá
National Research Council Canada - Canadá |
| 13 | Law, David R. | Hombre |
Space Telescope Sci Inst - Estados Unidos
Haverford Coll - Estados Unidos STScI - Estados Unidos Haverford College - Estados Unidos Space Telescope Science Institute - Estados Unidos |
| 14 | Stark, David V. | Hombre |
Haverford Coll - Estados Unidos
Haverford College - Estados Unidos |
| 15 | Bizyaev, Dmitry | Hombre |
Apache Point Observ - Estados Unidos
New Mexico State Univ - Estados Unidos Moscow MV Lomonosov State Univ - Rusia Lomonosov Moscow State University - Rusia Apache Point Observatory - Estados Unidos |
| 16 | Li, Cheng | - |
Tsinghua Univ - China
Tsinghua University - China |
| 17 | Lee, C. -H. | Hombre |
NSFs Natl Opt Infrared Astron Res Lab - Estados Unidos
NSF's National Optical-Infrared Astronomy Research Laboratory - Estados Unidos NOIRLab - Estados Unidos |
| 18 | Fu, H. | - |
UNIV IOWA - Estados Unidos
University of Iowa - Estados Unidos |
| 19 | Belfiore, F. | Hombre |
ESO - Alemania
Observatorio Europeo Austral - Alemania European Southern Observ - Alemania |
| 20 | Bundy, Kevin | Hombre |
Univ Calif Santa Cruz - Estados Unidos
University of California, Santa Cruz - Estados Unidos |
| 21 | FERNANDEZ-TRINCADO, JOSE GREGORIO | Hombre |
Universidad de Atacama - Chile
|
| 22 | Gelfand, Joseph | Hombre |
NYU Abu Dhabi - Emiratos Árabes Unidos
NYU Ctr Cosmol & Particle Phys - Estados Unidos The Center for Cosmology and Particle Physics - Estados Unidos |
| 23 | Peirani, Sebastien | Hombre |
Univ Cote Azur - Francia
CNRS - Francia UPMC - Francia Observatoire de la Côte d'Azur - Francia CNRS Centre National de la Recherche Scientifique - Francia |
| Fuente |
|---|
| FONDECYT |
| CONACYT |
| Universidad Nacional Autónoma de México |
| UNAM |
| Ohio State University |
| Vanderbilt University |
| Yale University |
| INSU/CNRS (France) |
| MPG (Germany) |
| IGN (Spain) |
| Alfred P. Sloan Foundation |
| U.S. Department of Energy Office of Science |
| University of Arizona |
| Brazilian Participation Group |
| Carnegie Mellon University |
| French Participation Group |
| Instituto de Astrofisica de Canarias |
| Johns Hopkins University |
| Lawrence Berkeley National Laboratory |
| New Mexico State University |
| New York University |
| Pennsylvania State University |
| University of Portsmouth |
| University of Utah |
| University of Virginia |
| University of Washington |
| National Science Centre, Poland through the SONATA BIS grant |
| Academia Sinica |
| Russian Science Foundation |
| Center for High-Performance Computing at the University of Utah |
| Carnegie Institution for Science |
| Chilean Participation Group |
| Harvard-Smithsonian Center for Astrophysics |
| Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo |
| Korean Participation Group |
| Leibniz Institut fur Astrophysik Potsdam (AIP) |
| Max-Planck-Institut fur Astronomie (MPIA Heidelberg) |
| Max-Planck-Institut fur Astrophysik (MPA Garching) |
| Max-Planck-Institut fur Extraterrestrische Physik (MPE) |
| National Astronomical Observatories of China |
| University of Notre Dame |
| Observatario Nacional/MCTI |
| Shanghai Astronomical Observatory |
| United Kingdom Participation Group |
| University of Colorado Boulder |
| University of Oxford |
| University of Wisconsin |
| Ministry of Science & Technology of Taiwan |
| Becas Iberoamerica Investigador 2019, Banco Santander Chile |
| Ministry of Science and Higher Education of the Russian Federation |
| National Aeronautics and Space Administration (NASA) through Chandra X-ray Center |
| Royal Society of Edinburgh International Exchange Programme |
| Agradecimiento |
|---|
| Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS-IV acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS website is www.sdss.org.SDSS-IV is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofisica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo, the Korean Participation Group, Lawrence Berkeley National Laboratory, Leibniz Institut fur Astrophysik Potsdam (AIP), Max-Planck-Institut fur Astronomie (MPIA Heidelberg), Max-Planck-Institut fur Astrophysik (MPA Garching), Max-Planck-Institut fur Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University. |
| This project makes use of the MaNGA-Pipe3D dataproducts (Sanchez et al. 2016, 2018). We thank the IA-UNAM MaNGA team for creating this catalog and the Conacyt Project CB285080 for supporting them. |
| This work is partly based on observations carried out under project number S16BE001 with the IRAM NOEMA Interferometer. IRAM is supported by INSU/CNRS (France), MPG (Germany), and IGN (Spain). |
| This work is partly based on observations obtained with MegaPrime/MegaCam, a joint project of CFHT and CEA/DAPNIA, at the Canada-France-Hawaii Telescope (CFHT), which is operated by the National Research Council (NRC) of Canada, the Institut National des Sciences de l'Univers of the Centre National de la Recherche Scientifique of France, and the University of Hawaii. The authors also wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. |
| This work is partly based on observations obtained with the 6 m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation (including agreement No. 05.619.21.0016, project ID RFMEFI61919X0016). The analysis of the ionized gas distribution according SCORPIO-2 data was supported by the grant of Russian Science Foundation project 17-12-01335 "Ionized gas in galaxy discs and beyond the optical radius". |
| This work use GAIA to derive aperture photometry. GAIA is a derivative of the SKYCAT catalog and image display tool, developed as part of the VLT project at ESO. SKYCAT and GAIA are free software under the terms of the GNU copyright. The 3D facilities in GAIA use the VTK library. |
| Funding for the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation, the U.S. Department of Energy Office of Science, and the Participating Institutions. SDSS-IV acknowledges support and resources from the Center for High-Performance Computing at the University of Utah. The SDSS website is www.sdss.org.SDSS-IV is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS Collaboration including the Brazilian Participation Group, the Carnegie Institution for Science, Carnegie Mellon University, the Chilean Participation Group, the French Participation Group, Harvard-Smithsonian Center for Astrophysics, Instituto de Astrofisica de Canarias, The Johns Hopkins University, Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo, the Korean Participation Group, Lawrence Berkeley National Laboratory, Leibniz Institut fur Astrophysik Potsdam (AIP), Max-Planck-Institut fur Astronomie (MPIA Heidelberg), Max-Planck-Institut fur Astrophysik (MPA Garching), Max-Planck-Institut fur Extraterrestrische Physik (MPE), National Astronomical Observatories of China, New Mexico State University, New York University, University of Notre Dame, Observatario Nacional/MCTI, The Ohio State University, Pennsylvania State University, Shanghai Astronomical Observatory, United Kingdom Participation Group, Universidad Nacional Autonoma de Mexico, University of Arizona, University of Colorado Boulder, University of Oxford, University of Portsmouth, University of Utah, University of Virginia, University of Washington, University of Wisconsin, Vanderbilt University, and Yale University. |
