X-ray emission from the young brown dwarfs of the Taurus Molecular Cloud

被引：0
|
作者：
Grosso, N [1 ]
Briggs, K
Güdel, M
Guieu, S
Franciosini, E
Audard, M
Dougados, C
Monin, JL
Ménard, F
Bouvier, J
机构：
[1] Univ Grenoble 1, Astrophys Lab, F-38041 Grenoble, France
[2] Paul Scherrer Inst, Villigen, Switzerland
[3] INAF Osservatorio Astron Palermo, I-90134 Palermo, Italy
[4] INAF Osservatorio Astron Arcetri, I-50125 Florence, Italy
[5] Inst Univ France, Pau, France
[6] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA
来源：
PROCEEDINGS OF THE X-RAY UNIVERSE 2005, VOLS 1 AND 2 | 2006年 / 604卷
关键词：
Taurus dark cloud; brown dwarfs; X-rays;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The X-ray Emission Survey of the Taurus Molecular Cloud (XEST) is an exceptionally large project to systematically investigate the high-energy properties of young stellar objects in this nearest star-forming region. It is accompanied by optical and near-infrared surveys of the same area. When XMM-Newton archival observations are added, the total X-ray exposure time is more than 200 hours shared among 25 pointings. In particular the surveyed areas, combined with two Chandra archival observations, allow us to study the X-ray emission of 19 young bona fide brown dwarfs (BDs) of the Taurus Molecular Cloud (TMC). We report here the properties of the X-ray emission of these young BDs. We detected half of this substellar sample in X-rays. Comparison with the properties of the X-ray emission from low-mass stars will allow us to investigate changes in the magnetic activity around the stellar/substellar boundary.
引用
收藏
页码：83 / +
页数：2
相关论文
共 50 条
  • [21] A search for optical outflows from brown dwarfs in the Chamaeleon I molecular cloud
    Wang, Hongchi
    Henning, Thomas
    ASTROPHYSICAL JOURNAL, 2006, 643 (02) : 985 - 994
  • [22] Hard X-ray emission associated with white dwarfs. II.
    Chu, YH
    Guerrero, MA
    Gruendl, RA
    Webbink, RF
    ASTRONOMICAL JOURNAL, 2004, 127 (01) : 477 - 480
  • [23] Search for X-ray emission from young stellar objects using ASCA
    Ozawa, H
    Nagase, F
    Ueda, Y
    Dotani, T
    Ishida, M
    FROM DARKNESS TO LIGHT: ORIGIN AND EVOLUTION OF YOUNG STELLAR CLUSTERS, 2001, 243 : 561 - 570
  • [24] Jets from young stars and brown dwarfs
    Whelan, E. T.
    ASTRONOMISCHE NACHRICHTEN, 2014, 335 (05) : 537 - 542
  • [25] PROTO-BROWN DWARFS .2. RESULTS IN THE OPHIUCHUS AND TAURUS MOLECULAR CLOUDS
    POUND, MW
    BLITZ, L
    ASTROPHYSICAL JOURNAL, 1995, 444 (01) : 270 - 287
  • [26] X-ray emission near the substellar limit:: The σ Orionis and Taurus star forming regions
    Mokler, F
    Stelzer, B
    ASTRONOMY & ASTROPHYSICS, 2002, 391 (03) : 1025 - 1032
  • [27] The distance to an X-ray shadowing molecular cloud in Ursa major
    Benjamin, RA
    Venn, KA
    Hiltgen, DD
    Sneden, C
    ASTROPHYSICAL JOURNAL, 1996, 464 (02) : 836 - 841
  • [28] From Molecular Cores to Stars and Brown Dwarfs
    Matthew R. Bate
    Astrophysics and Space Science, 2004, 292 : 297 - 307
  • [29] X-ray emission from the Fornax cluster
    Jones, C
    Stern, C
    Forman, W
    Breen, J
    David, L
    Tucker, W
    Franx, M
    ASTROPHYSICAL JOURNAL, 1997, 482 (01) : 143 - 155
  • [30] X-ray emission from the guitar nebula
    Romani, RW
    Cordes, JM
    Yadigaroglu, IA
    ASTROPHYSICAL JOURNAL, 1997, 484 (02) : L137 - &
12345