| dc.contributor.author | Townsley, L | |
| dc.contributor.author | Broos, P | |
| dc.contributor.author | Garmire, G | |
| dc.contributor.author | Anderson, G | |
| dc.contributor.author | Feigelson, E | |
| dc.contributor.author | Naylor, T | |
| dc.contributor.author | Povich, M | |
| dc.date.accessioned | 2018-02-13T15:37:09Z | |
| dc.date.issued | 2018-04-23 | |
| dc.description.abstract | We present the second installment of the Massive Star-forming Regions (MSFRs) Omnibus X-ray
Catalog (MOXC2), a compilation of X-ray point sources detected in Chandra/ACIS observations of
16 Galactic MSFRs and surrounding elds. MOXC2 includes 13 ACIS mosaics, three containing a
pair of unrelated MSFRs at di erent distances, with a total catalog of 18,396 point sources. The
MSFRs sampled range over distances of 1.3 kpc to 6 kpc and populations varying from single massive
protostars to the most massive Young Massive Cluster known in the Galaxy. By carefully detecting
and removing X-ray point sources down to the faintest statistically-signi cant limit, we facilitate the
study of the remaining unresolved X-ray emission. Through comparison with mid-infrared images
that trace photon-dominated regions and ionization fronts, we see that the unresolved X-ray emission
is due primarily to hot plasmas threading these MSFRs, the result of feedback from the winds and supernovae
of massive stars. The 16 MSFRs studied in MOXC2 more than double the MOXC1 sample,
broadening the parameter space of ACIS MSFR explorations and expanding Chandra's substantial
contribution to contemporary star formation science. | en_GB |
| dc.description.sponsorship | This work was supported by Chandra X-ray Observatory general observer grants GO3-
14002X, GO5-16015X, and GO6-17132X (PI: L. Townsley), and GO9-0155X (PI: Bryan Gaensler),
and by the Penn State ACIS Instrument Team Contract SV4-74018. All of these were issued by the
Chandra X-ray Center, which is operated by the Smithsonian Astrophysical Observatory for and on
behalf of NASA under contract NAS8-03060. The ACIS Guaranteed Time Observations included
here were selected by the ACIS Instrument Principal Investigator, Gordon P. Garmire, of the Huntingdon
Institute for X-ray Astronomy, LLC, which is under contract to the Smithsonian Astrophysical
Observatory; Contract SV2-82024. M.S.P. is supported by the National Science Foundation through
grant CAREER-1454333. T.N. was supported for the nal part of this work through a Leverhulme
Trust Research Project Grant. This research used data products from the Chandra Data Archive,
software provided by the Chandra X-ray Center in the application package CIAO, and SAOImage
DS9 software developed by the Smithsonian Astrophysical Observatory. This research also used data
products from the Spitzer Space Telescope, operated by the Jet Propulsion Laboratory (California
Institute of Technology) (JPL/CalTech) under a contract with NASA, and data products from the
Wide- eld Infrared Survey Explorer (WISE), which is a joint project of the University of California,
Los Angeles and JPL/CalTech, funded by NASA. This research used NASA's Astrophysics Data
System Bibliographic Services, and the SIMBAD database and VizieR catalog access tool provided
by CDS, Strasbourg, France. | en_GB |
| dc.identifier.citation | Vol. 235 (2). Published online 23 April 2018. | en_GB |
| dc.identifier.doi | 10.3847/1538-4365/aaaf67 | |
| dc.identifier.uri | http://hdl.handle.net/10871/31455 | |
| dc.language.iso | en | en_GB |
| dc.publisher | American Astronomical Society / IOP Publishing | en_GB |
| dc.rights | © 2018. The American Astronomical Society. All rights reserved. | |
| dc.subject | X-Rays: stars | en_GB |
| dc.subject | stars: early-type | en_GB |
| dc.subject | stars: formation | en_GB |
| dc.subject | ISM: individual objects (NGC 6334, GUM 61, GM 24, W75N, RCW 120, IRAS 20126+4104, W31N, IRAS 19410+2336, W42, NGC 6823, W33, NGC 7538, G333, G333.6-0.2, G333.3-0.4, G333.1-0.4, RCW 106, AFGL 2591, G34.4+0.23, Cl 1813-178, Westerlund 1, RSGC1) | en_GB |
| dc.title | The Massive Star-forming Regions Omnibus X-ray Catalog, Second Installment | en_GB |
| dc.type | Article | en_GB |
| dc.identifier.issn | 1538-4365 | |
| dc.description | This is the author accepted manuscript. The final version is available from American Astronomical Society / IOP Publishing via the DOI in this record. | en_GB |
| dc.identifier.journal | Astrophysical Journal Supplement | en_GB |
