PMO OpenIR  > 星系中的恒星形成研究团组
X-RAY EMISSION FROM THE TAFFY (VV254) GALAXIES AND BRIDGE
Appleton, P. N.1; Lanz, L.1; Bitsakis, T.2; Wang, J.3,4; Peterson, B. W.5; Lisenfeld, U.6; Alatalo, K.1,7; Guillard, P.8,9,10; Boulanger, F.11; Cluver, M.12; Gao, Y.13; Helou, G.1; Ogle, P.1; Struck, C.14
2015-10-20
Source PublicationASTROPHYSICAL JOURNAL
Volume812Issue:2
AbstractWe present the first X-ray observations of the Taffy galaxies (UGC 12914/5) with the Chandra observatory and detect soft X-ray emission in the region of the gas-rich, radio-continuum-emitting Taffy bridge. The results are compared to Herschel observations of dust and diffuse [C II] line-emitting gas. The diffuse component of the Taffy bridge has an X-ray luminosity of LX(0.5-8 keV) = 5.4 x 10(39) erg s(-1), which accounts for 19% of the luminosity of the sum for the two galaxies. The total mass in hot gas is (0.8-1.3) x 10(8) M-circle dot, which is approximately 1% of the total (H I + H-2) gas mass in the bridge, and similar to 11% of the mass of warm molecular hydrogen discovered by Spitzer. The soft X-ray and dense CO-emitting gas in the bridge have offset distributions, with the X-rays peaking along the northwestern side of the bridge in the region where stronger far-IR dust and diffuse [C II] gas is observed by Herschel. We detect nine Ultra Luminous X-ray sources in the system, the brightest of which is found in the bridge, associated with an extragalactic H II region. We suggest that the X-ray-emitting gas has been shocked-heated to high temperatures and "splashed" into the bridge by the collision. The large amount of gas stripped from the galaxies into the bridge and its very long gas depletion timescale (>10 Gyr) may explain why this system, unlike most major mergers, is not a powerful IR emitter.
KeywordGalaxies: Individual (Ugc 12914, Ugc12915, Vv254)
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/812/2/118
WOS KeywordSTAR-FORMATION RATE ; INTER-STELLAR MEDIUM ; STEPHANS QUINTET ; INFRARED GALAXIES ; INTERACTING GALAXIES ; STARBURST GALAXIES ; ANTENNAE GALAXIES ; MOLECULAR GAS ; GALACTIC SUPERWINDS ; INTERSTELLAR-MEDIUM
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000365206600030
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16054
Collection星系中的恒星形成研究团组
Affiliation1.CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA
2.Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 70264, DF, Mexico
3.Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China
4.Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Fujian, Peoples R China
5.Univ Wisconsin Barron Cty, Rice Lake, WI 54868 USA
6.Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain
7.Observ Carnegie Inst Washington, Pasadena, CA 91101 USA
8.Univ Paris 06, Univ Paris 04, F-7095 Paris, France
9.CNRS, UMR, F-7095 Paris, France
10.Univ Paris 11, Inst Astrophys Spatiale, Orsay, France
11.Inst Astrophys Paris, F-75014 Paris, France
12.Univ Western Cape, Cape Town, South Africa
13.Purple Mt Observ, Nanjing, Jiangsu, Peoples R China
14.Iowa State Univ, Ames, IA 50011 USA
Recommended Citation
GB/T 7714
Appleton, P. N.,Lanz, L.,Bitsakis, T.,et al. X-RAY EMISSION FROM THE TAFFY (VV254) GALAXIES AND BRIDGE[J]. ASTROPHYSICAL JOURNAL,2015,812(2).
APA Appleton, P. N..,Lanz, L..,Bitsakis, T..,Wang, J..,Peterson, B. W..,...&Struck, C..(2015).X-RAY EMISSION FROM THE TAFFY (VV254) GALAXIES AND BRIDGE.ASTROPHYSICAL JOURNAL,812(2).
MLA Appleton, P. N.,et al."X-RAY EMISSION FROM THE TAFFY (VV254) GALAXIES AND BRIDGE".ASTROPHYSICAL JOURNAL 812.2(2015).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Appleton, P. N.]'s Articles
[Lanz, L.]'s Articles
[Bitsakis, T.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Appleton, P. N.]'s Articles
[Lanz, L.]'s Articles
[Bitsakis, T.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Appleton, P. N.]'s Articles
[Lanz, L.]'s Articles
[Bitsakis, T.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.