THE GOULD'S BELT VERY LARGE ARRAY SURVEY. V. THE PERSEUS REGION
Por:
Pech, Gerardo, Loinard, Laurent, Dzib, Sergio A., Mioduszewski, Amy J., Rodriguez, Luis F., Ortiz-Leon, Gisela N., Rivera, Juana L., Torres, Rosa M., Boden, Andrew F., Hartman, Lee, Kounkel, Marina A., Evans, II, Neal J., Briceno, Cesar, Tobin, John, Zapata, Luis A.
Publicada:
20 feb 2016
Resumen:
We present multiepoch, large-scale (similar to 2000 arcmin(2)), fairly
deep (similar to 16 mu Jy), high-resolution (similar to 1 `') radio
observations of the Perseus star-forming complex obtained with the Karl
G. Jansky Very Large Array at frequencies of 4.5 and 7.5 GHz. These
observations were mainly focused on the clouds NGC 1333 and IC 348,
although we also observed several fields in other parts of the Perseus
complex. We detect a total of 206 sources, 42 of which are associated
with young stellar objects (YSOs). The radio properties of about 60% of
the YSOs are compatible with a nonthermal radio emission origin. Based
on our sample, we find a fairly clear relation between the prevalence of
nonthermal radio emission and evolutionary status of the YSOs. By
comparing our results with previously reported X-ray observations, we
show that YSOs in Perseus follow a Gudel-Benz relation with kappa =
0.03, consistent with other regions of star formation. We argue that
most of the sources detected in our observations but not associated with
known YSOs are extragalactic, but provide a list of 20 unidentified
radio sources whose radio properties are consistent with being YSO
candidates. Finally, we also detect five sources with extended emission
features that can clearly be associated with radio galaxies.
Filiaciones:
Pech, Gerardo:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Apartado Postal 3-72, Morelia 58089, Michoacan, Mexico
Loinard, Laurent:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Apartado Postal 3-72, Morelia 58089, Michoacan, Mexico
Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
Dzib, Sergio A.:
Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany
Mioduszewski, Amy J.:
Natl Radio Astron Observ, Domenici Sci Operat Ctr, 1003 Lopezville Rd, Socorro, NM 87801 USA
Rodriguez, Luis F.:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Apartado Postal 3-72, Morelia 58089, Michoacan, Mexico
King Abdulaziz Univ, POB 80203, Jeddah 21589, Saudi Arabia
Ortiz-Leon, Gisela N.:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Apartado Postal 3-72, Morelia 58089, Michoacan, Mexico
Rivera, Juana L.:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Apartado Postal 3-72, Morelia 58089, Michoacan, Mexico
Torres, Rosa M.:
Univ Guadalajara, Ctr Univ Tonala, Ave Nuevo Periferico 555, Tonala 48525, Jalisco, Mexico
Boden, Andrew F.:
CALTECH, Div Phys Math & Astron, 1200 East Calif Blvd, Pasadena, CA 91125 USA
Hartman, Lee:
Univ Michigan, Dept Astron, 500 Church St, Ann Arbor, MI 48105 USA
Kounkel, Marina A.:
Univ Michigan, Dept Astron, 500 Church St, Ann Arbor, MI 48105 USA
Briceno, Cesar:
Natl Opt Astron Observ, Cerro Tololo Inter Amer Observ, Casilla 603, La Serena, Chile
Tobin, John:
Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
Zapata, Luis A.:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Apartado Postal 3-72, Morelia 58089, Michoacan, Mexico
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