High-resolution CO observations of weak G-band stars

1984 ◽  
Vol 96 ◽  
pp. 38 ◽  
Author(s):  
C. Sneden ◽  
C. A. Pilachowski
Keyword(s):  
High Resolution ◽  
Co Observations

scholarly journals 5.18. Molecular gas in the poststarburst galaxy NGC7331

1998 ◽  
Vol 184 ◽  
pp. 247-248
Author(s):  
T. Tosaki ◽  
Y. Shioya
Keyword(s):  
High Resolution ◽  
Spiral Galaxy ◽  
Stellar Populations ◽  
Optical Spectra ◽  
Molecular Gas ◽  
Early Type ◽  
Origin And Evolution ◽  
Co Observations

To understand the origin and evolution of starburst activity, we must study the full evolution of starburst; i.e., pre-, on-going, and post-starburst phases. It seems reasonable to suppose the numerous A-type stars indicate past starburst and they show strong Balmer absorption. NGC7331, nearby early-type spiral galaxy, is one of the poststarburst galaxies which show strong Balmer absorption. The optical spectra of NGC7331 were dominated by component of intermediate-age (5 × 109 years) stellar populations (Ohyama & Taniguchi 1996). We present the result of the high resolution CO observations of NGC7331 using Nobeyama Milimeter Array.

scholarly journals The Relationship Between Gas and Cirrus Dust Filaments at the Edge of the Expanding Shell in Eridanus

1990 ◽  
Vol 139 ◽  
pp. 235-236
Author(s):  
G. L. Verschuur ◽  
F. Verter ◽  
L. J. Rickard ◽  
D. T. Leisawitz
Keyword(s):  
High Resolution ◽  
Surface Brightness ◽  
Neutral Hydrogen ◽  
Scale Structure ◽  
Small Scale ◽  
Molecular Gas ◽  
Small Scale Structure ◽  
Point To Point ◽  
The Relationship ◽  
Co Observations

At the boundary of a large expanding shell in Eridanus around l = 187°, b = −50° the morphology observed in the HI emission is well mimicked by the 100 μm surface brightness but with associated structures offset by as much as 0.°5. A point-to-point comparison between I100μm and NHI in filaments of neutral hydrogen and dust (IR cirrus) produces only a weak dependence. However, when I100μm at a cirrus dust peak is compared with NHI at the associated H i peak, a relationship closer to that reported by other workers is found. Preliminary CO observations have set low limits on the molecular gas in these filaments. Since the H i and dust in our region are associated with a large expanding shell (or superbubble), shocks may be responsible for separation of gas and dust. The existence of small-scale structure in both the HI and IR is noted. We conclude that attempts to correlate HI and IR must invoke high-resolution area surveys.

High-resolution CO observations of NGC 7027

1985 ◽  
Vol 292 ◽  
pp. 464 ◽  
Author(s):  
C. R. Masson ◽  
K. W. Cheung ◽  
G. L. Berge ◽  
M. J. Claussen ◽  
G. M. Heiligman ◽  
...  
Keyword(s):  
High Resolution ◽  
Ngc 7027 ◽  
Co Observations

High-resolution CO observations of NGC 1068

1989 ◽  
Vol 337 ◽  
pp. 691 ◽  
Author(s):  
Noboru Kaneko ◽  
Kazuhiko Morita ◽  
Yasuo Fukui ◽  
Koji Sugitani ◽  
Takahiro Iwata ◽  
...  
Keyword(s):  
High Resolution ◽  
Ngc 1068 ◽  
Co Observations

scholarly journals High-resolution CO observations towards the bright eastern knot of the SNR Puppis A

2008 ◽  
Vol 480 (2) ◽  
pp. 439-443 ◽  
Author(s):  
S. Paron ◽  
G. Dubner ◽  
E. Reynoso ◽  
M. Rubio
Keyword(s):  
High Resolution ◽  
Co Observations

scholarly journals High Resolution CO Observations of the Bipolar Nebula CRL2688

1987 ◽  
Vol 115 ◽  
pp. 400-402
Author(s):  
R. Kawabe ◽  
T. Kasuga ◽  
M. Ishiguro ◽  
K-I. Morita ◽  
N. Ukita ◽  
...  
Keyword(s):  
High Resolution ◽  
Mass Loss ◽  
Planetary Nebulae ◽  
Optical Emission ◽  
Central Star ◽  
Reflection Nebula ◽  
Red Giant ◽  
Molecular Envelope ◽  
Rapid Mass ◽  
Co Observations

CRL2688 is suggested to be one of the proto-planetary nebulae which are probably at a stage in which the central star is evolving from the red giant phase with rapid mass loss (Zuckerman 1978). The bipolar shape in both the optical and H2emission indicates that a dense toroid of dust and gas obscures the star and surrounds the optical emission. The toroid is probably responsible for channelling the mass loss to the polar directions (Neyet al.1975, Morris 1981, Beckwithet al.1984). We present the results of mapping observations of CO (J = 1-0) emission from the expanding molecular envelope (Zuckermanet al.1976, Loet al.1976, Knappet al.1982, Thronsonet al.1983) of the bipolar reflection nebula CRL2688 using the Nobeyama 45-m telescope with a 1.5″ resolution at a 7″.5 observing spacing.

High-resolution CO observations of young low-mass stars

1989 ◽  
Vol 340 ◽  
pp. 472 ◽  
Author(s):  
S. Terebey ◽  
S. N. Vogel ◽  
P. C. Myers
Keyword(s):  
High Resolution ◽  
Low Mass Stars ◽  
Low Mass ◽  
Co Observations
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