H II regions; stars: massive; stars: pre-main sequence; X-rays: individual: Carina; X-rays: ISM; X-rays: stars
Abstract :
[en] The Great Nebula in Carina provides an exceptional view into the violent massive star formation and feedback that typifies giant H II regions and starburst galaxies. We have mapped the Carina star-forming complex in X-rays, using archival Chandra data and a mosaic of 20 new 60 ks pointings using the Chandra X-ray Observatory's Advanced CCD Imaging Spectrometer, as a testbed for understanding recent and ongoing star formation and to probe Carina's regions of bright diffuse X-ray emission. This study has yielded a catalog of properties of >14,000 X-ray point sources; >9800 of them have multiwavelength counterparts. Using Chandra's unsurpassed X-ray spatial resolution, we have separated these point sources from the extensive, spatially-complex diffuse emission that pervades the region; X-ray properties of this diffuse emission suggest that it traces feedback from Carina's massive stars. In this introductory paper, we motivate the survey design, describe the Chandra observations, and present some simple results, providing a foundation for the 15 papers that follow in this special issue and that present detailed catalogs, methods, and science results.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Townsley, Leisa K; Department of Astronomy & Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA
Broos, Patrick S; Department of Astronomy & Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA
Corcoran, Michael F; CRESST and X-ray Astrophysics Laboratory NASA/GSFC, Greenbelt, MD 20771, USA ; Universities Space Research Association, 10211 Wincopin Circle, Suite 500, Columbia, MD 21044, USA
Feigelson, Eric D; Department of Astronomy & Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA
Gagné, Marc; Department of Geology and Astronomy, West Chester University, West Chester, PA 19383, USA
Montmerle, Thierry; Institut d'Astrophysique de Paris, 98bis, Bd Arago, 75014 Paris, France
Oey, M. S.; Department of Astronomy, University of Michigan, 830 Dennison Building, Ann Arbor, MI 48109-1042, USA
Smith, Nathan; Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Garmire, Gordon P; Department of Astronomy & Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA
Getman, Konstantin V; Department of Astronomy & Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA
Povich, Matthew S; Department of Astronomy & Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802, USA ; NSF Astronomy and Astrophysics Postdoctoral Fellow.
Remage Evans, Nancy; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Nazé, Yaël ; GAPHE, Département AGO, Université de Liège, Allée du 6 Août 17, Bat. B5C, B4000-Liège, Belgium
Parkin, E. R.; Institut d'Astrophysique et de Géophysique, Université de Liège, 17 Allée du 6 Août, B5c, B-4000 Sart Tilman, Belgium ; School of Physics and Astronomy, The University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
Wang, Junfeng; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Wolk, Scott J; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA
Chu, You-Hua; Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA
Cohen, David H; Department of Physics and Astronomy, Swarthmore College, 500 College Avenue, Swarthmore, PA 19081, USA
Gruendl, Robert A; Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801, USA
Hamaguchi, Kenji; CRESST and X-ray Astrophysics Laboratory NASA/GSFC, Greenbelt, MD 20771, USA ; Department of Physics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
King, Robert R; Astrophysics Group, College of Engineering, Mathematics, and Physical Sciences, University of Exeter, Exeter EX4 4QL, UK
Mac Low, Mordecai*-Mark; Division of Physical Sciences, American Museum of Natural History, 79th St. at CPW, New York, NY 10024-5192, USA
McCaughrean, Mark J; Astrophysics Group, College of Engineering, Mathematics, and Physical Sciences, University of Exeter, Exeter EX4 4QL, UK ; European Space Agency, Research & Scientific Support Department, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands
Moffat, Anthony F J; Département de Physique, Université de Montréal and Centre de Recherche en Astrophysique du Québec, C. P. 6128, Succ. C-V, Montréal, QC H3C 3J7, Canada
Oskinova, L. M.; Institute for Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany
Pittard, Julian M; School of Physics and Astronomy, The University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
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ud-Doula, Asif; Penn State Worthington Scranton, 120 Ridge View Drive, Dunmore, PA 18512, USA
Walborn, Nolan R; Space Telescope Science Institute, Baltimore, MD 21218, USA
Waldron, Wayne L; Eureka Scientific, Inc., 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017, USA
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