ChandraStudy of Young Stellar Objects in the NGC 1333 Star‐forming Cloud
نویسندگان
چکیده
منابع مشابه
Observations of NGC 1333 : The Ratio of Stars to Sub - stellar Objects
We present an analysis of NICMOS photometry and low-resolution grism spectroscopy of low-mass stars and sub-stellar objects in the young star-forming region NGC 1333. Our goal is to constrain the ratio of low-mass stars to substellar objects down to 20 MJup in the cluster as well as constrain the cluster
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We use two 4.5μm Spitzer (IRAC) maps of the NGC 1333 region taken over a ∼ 7 yr interval to determine proper motions of its associated outflows. This is a first, successful attempt at obtaining proper motions of stellars outflow from Spitzer observations. For the outflow formed by the HerbigHaro objects HH7, 8 and 10, we find proper motions of ∼ 9-13 km s−1, which are consistent with previously...
متن کاملThe molecular outflows in NGC 1333
We present the results of CO(J =3→2) mapping using the James Clerk Maxwell Telescope of the active star formation region NGC 1333, supplemented by CO(J=1→0) mapping from the Onsala Space Observatory millimetre telescope. These maps provide a detailed overview of the complex cluster of overlapping molecular outflows associated with Herbig-Haro (HH) objects and shocked H2, and the far-infrared an...
متن کاملTurbulence Driven by Outflow - Blown Cavities in the Molecular Cloud of Ngc 1333
Outflows from young stellar objects have been identified as a possible source of turbulence in molecular clouds. To investigate the relationship between outflows, cloud dynamics and turbulence, we compare the kinematics of the molecular gas associated with NGC 1333, traced in CO(1-0), with the distribution of young stellar objects (YSOs) within. We find a velocity dispersion of ∼ 1− 1.6km/s in ...
متن کاملSpectroscopy of Brown Dwarf Candidates in the NGC 1333 Molecular Cloud
We present an analysis of low-resolution infrared spectra for 25 brown dwarf candidates in the NGC 1333 molecular cloud. Candidates were chosen on the basis of their association with the high column density cloud core, and near-infrared fluxes and colors. We compare the depths of water vapor absorption bands in our candidate objects with a grid of dwarf, subgiant, and giant standards to determi...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2002
ISSN: 0004-637X,1538-4357
DOI: 10.1086/341219