An X-shooter survey of star forming regions: Low-mass stars and sub-stellar objects

被引：26

作者：

Alcala, J. M. ^{[1
]}

Stelzer, B. ^{[2
]}

Covino, E. ^{[1
]}

Cupani, G. ^{[6
]}

Natta, A. ^{[3
]}

Randich, S. ^{[3
]}

Rigliaco, E. ^{[3
]}

Spezzi, L. ^{[8
]}

Testi, L. ^{[3
]}

Bacciotti, F. ^{[3
]}

Bonito, R. ^{[2
,10
]}

Covino, S. ^{[7
]}

Flaccomio, E. ^{[2
]}

Frasca, A. ^{[4
]}

Gandolfi, D. ^{[8
]}

Leone, F. ^{[4
,11
]}

Micela, G. ^{[2
]}

Nisini, B. ^{[5
]}

Whelan, E. ^{[9
]}

机构：

[1] Osserv Astron Capodimonte, INAF, I-80131 Naples, Italy

[2] Osserv Astron Palermo, INAF, I-90134 Palermo, Italy

[3] Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy

[4] Osserv Astrofis Catania, INAF, I-95123 Catania, Italy

[5] Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy

[6] Osserv Astron Trieste, INAF, I-34143 Trieste, Italy

[7] Osserv Astron Brera, INAF, I-23807 Merate, LC, Italy

[8] ESA ESTEC, Res & Sci Support Dept, NL-2200 AG Noordwijk, Netherlands

[9] Lab Astrophys Grenoble, UMR 5571, F-38041 Grenoble 09, France

[10] Univ Palermo, Dip Sci Fis & Astron, Sez Astron, I-90134 Palermo, Italy

[11] Univ Catania, Dip Fis & Astron, Sez Astrofis, I-95123 Catania, Italy

来源：

ASTRONOMISCHE NACHRICHTEN | 2011年 / 332卷 / 03期

关键词：

accretion; accretion disks; ISM: jets and outflows; stars: formation; stars:; low-mass; brown dwarfs; stars: pre-main sequence; T Tauri stars; SPITZER C2D SURVEY; T-TAURI STARS; DISK ACCRETION; BROWN DWARFS; YOUNG; NEARBY; POPULATION; RATES; IRAC;

D O I：

10.1002/asna.201111526

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present preliminary results of our X-shooter survey in star forming regions. In this contribution we focus on sub-samples of young stellar and sub-stellar objects (YSOs) in the Lupus star forming region and in the TW Hya association. We show that the X-shooter spectra are suitable for conducting several parallel studies such as YSO + disk fundamental parameters, accretion and outflow activity in the very low-mass (VLM) and sub-stellar regimes, as well as magnetic activity in young VLM YSOs, and Li abundance determinations. The capabilities of X-shooter in terms of wide spectral coverage, resolution and limiting magnitudes, allow us to assess simultaneously the accretion/outflow, magnetic activity, and disk diagnostics, from the UV and optical to the near-IR, avoiding ambiguities due to possible YSO variability. (C) 2011 WILEY-VCH Verlag GmbH&Co. KGaA, Weinheim

引用

页码：242 / 248

页数：7

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