| Autor: |
Dzib, Sergio A., Loinard, Laurent, Rodríguez, Luis F., Mioduszewski, Amy J., Ortiz-León, Gisela N., Kounkel, Marina A., Pech, Gerardo, Rivera, Juana L., Torres, Rosa M., Boden, Andrew F., Hartmann, Lee, Evans I. I., Neal J., Briceño, Cesar, Tobin, John |
| Předmět: |
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| Zdroj: |
Astrophysical Journal; 3/10/2015, Vol. 801 Issue 2, p1-1, 1p |
| Abstrakt: |
We present a multi-epoch radio study of the Taurus-Auriga star-forming complex made with the Karl G. Jansky Very Large Array at frequencies of 4.5 GHz and 7.5 GHz. We detect a total of 610 sources, 59 of which are related to young stellar objects (YSOs) and 18 to field stars. The properties of 56% of the young stars are compatible with non-thermal radio emission. We also show that the radio emission of more evolved YSOs tends to be more non-thermal in origin and, in general, that their radio properties are compatible with those found in other star-forming regions. By comparing our results with previously reported X-ray observations, we notice that YSOs in Taurus-Auriga follow a Güdel-Benz relation with κ = 0.03, as we previously suggested for other regions of star formation. In general, YSOs in Taurus-Auriga and in all the previous studied regions seem to follow this relation with a dispersion of ∼1 dex. Finally, we propose that most of the remaining sources are related with extragalactic objects but provide a list of 46 unidentified radio sources whose radio properties are compatible with a YSO nature. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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