X-ray emission from objects in the CrA dark cloud core

2003 ◽  
Vol 324 (12) ◽  
pp. 153-153 ◽  
Author(s):  
G.P. Garmire ◽  
A.B. Garmire
Keyword(s):  
Dark Cloud ◽  
X Ray ◽  
Cloud Core

scholarly journals A Remarkable Bipolar Flow in the Center of the Rho Ophiuchi Cloud

1989 ◽  
Vol 120 ◽  
pp. 300-300
Author(s):  
Ph. Andre ◽  
J. Martin-Pintado ◽  
D. Despois ◽  
T. Montmerle
Keyword(s):  
Mass Loss Rate ◽  
Extreme Case ◽  
Width Ratio ◽  
Dark Cloud ◽  
Molecular Outflow ◽  
Ir Sources ◽  
Near Ir ◽  
Exciting Source ◽  
Rho Ophiuchi ◽  
Cloud Core

Using the IRAM 30-m telescope in August and December 1988, we have discovered the first molecular outflow in the central part (L1688) of the nearby ρ Ophiuchi dark cloud. This outflow, found in the J = 2 — 1 line of 12CO near the cloud core A, is an extreme case, weak (outflow mass-loss rate ≈ 5 x 10−8M⊙yr−1) and highly collimated (lenght to width ratio > 14), which explains why it has escaped previous detections with smaller telescopes. The high-velocity molecular gas is hot and optically thin, making the J = 2 — 1 line of 12CO ≈ 3-4 times stronger than the J = 1 — 0 line. Unexpectedly, this outflow does not appears to be driven by any of the embedded near-IR sources known in this region previous deep VLA surveys of the cloud (André, Montmerle, and Feigelson, 1987; Stine et al., 1988; André et al., in prep.). The outflow exciting source is thus probably a very low-luminosity ((L < 0.1L⊙) young stellar object. Using the 30-m equipped with the MPIfIR bolometer, we have very recently found (March 1989) that this object is the strongest continuum point source of L1688 at 1.3 mm. By analogy with L1551-IRS5 and HL Tau, the radio properties of this source suggest that it possesses a weak, possibly collimated, ionized wind and a relatively massive, cold circumstellar disk (Mdisk ≈0.1M⊙).

Einstein observations of the Rho Ophiuchi dark cloud - an X-ray Christmas tree

1983 ◽  
Vol 269 ◽  
pp. 182 ◽  
Author(s):  
T. Montmerle ◽  
L. Koch-Miramond ◽  
E. Falgarone ◽  
J. E. Grindlay
Keyword(s):  
Christmas Tree ◽  
Dark Cloud ◽  
X Ray ◽  
Rho Ophiuchi

A study of the stellar population in the LYNDS 1641 dark cloud. IV - The Einstein X-ray sources

1990 ◽  
Vol 362 ◽  
pp. 168 ◽  
Author(s):  
Karen M. Strom ◽  
Stephen E. Strom ◽  
Francis P. Wilkin ◽  
Luis Carrasco ◽  
Irene Cruz-Gonzalez ◽  
...  
Keyword(s):  
Stellar Population ◽  
Dark Cloud ◽  
X Ray

ROSAT X-ray sources embedded in the rho Ophiuchi cloud core

1995 ◽  
Vol 439 ◽  
pp. 752 ◽  
Author(s):  
Sophie Casanova ◽  
Thierry Montmerle ◽  
Eric D. Feigelson ◽  
Philippe Andre
Keyword(s):  
X Ray ◽  
Rho Ophiuchi ◽  
Cloud Core

scholarly journals A Parsec-scale Bipolar H2 Outflow in the Massive Star-forming Infrared Dark Cloud Core MSXDC G053.11+00.05 MM1

2018 ◽  
Vol 863 (1) ◽  
pp. 74
Author(s):  
Hyun-Jeong Kim ◽  
Bon-Chul Koo ◽  
Tae-Soo Pyo ◽  
Christopher J. Davis
Keyword(s):  
Massive Star ◽  
Dark Cloud ◽  
Star Forming ◽  
Cloud Core

scholarly journals High-angular resolution observations of methanol in the infrared dark cloud core G11.11-0.12P1

2011 ◽  
Vol 529 ◽  
pp. A161 ◽  
Author(s):  
L. Gómez ◽  
F. Wyrowski ◽  
T. Pillai ◽  
S. Leurini ◽  
K. M. Menten
Keyword(s):  
Angular Resolution ◽  
High Angular Resolution ◽  
Dark Cloud ◽  
Cloud Core

scholarly journals AN X-RAY AND INFRARED SURVEY OF THE LYNDS 1228 CLOUD CORE

2014 ◽  
Vol 147 (4) ◽  
pp. 88 ◽  
Author(s):  
Stephen L. Skinner ◽  
Luisa Rebull ◽  
Manuel Güdel
Keyword(s):  
X Ray ◽  
Cloud Core ◽  
Infrared Survey
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