High-resolution aperture synthesis of molecular gas in NGC 1068

1991 ◽  
Vol 369 ◽  
pp. 364 ◽  
Author(s):  
P. Planesas ◽  
N. Scoville ◽  
S. T. Myers
1994 ◽  
Vol 140 ◽  
pp. 143-147
Author(s):  
K.M. Shibata ◽  
S. Deguchi ◽  
T. Kasuga ◽  
S. Tamura ◽  
N. Hirano ◽  
...  

AbstractIn order to examine the structure and kinematics of the molecular gas around planetary nebulae, we have made aperture synthesis observations of I2CO(J=1-0) emission in three planetary nebulae, IRAS 21282+5050, CRL 618 and M 1-7, using Nobeyama Millimeter Array.


2004 ◽  
Vol 221 ◽  
pp. 19-28
Author(s):  
Anneila I. Sargent

Since the earliest stages of star formation occur deep in clouds of gas and dust, they are hidden from optical view. Nevertheless, infrared and millimeter wavelength observations over the last twenty years have enabled increasingly detailed studies of the processes involved in stellar birth. High resolution, aperture synthesis imaging of the millimeter-wave radiation from dust and molecular gas in star-forming clouds has proven particularly effective. On the other hand, there can be pitfalls to be avoided in the use of mm/sub-mm interferometry techniques. Here, we consider what has been learned from currently-operating mm interferometers and the potential of the next generation of arrays.


1997 ◽  
Vol 477 (1) ◽  
pp. 518-518 ◽  
Author(s):  
Padeli P. Papadopoulos ◽  
E. R. Seaquist ◽  
N. Z. Scoville

1999 ◽  
Vol 516 (1) ◽  
pp. 114-126 ◽  
Author(s):  
Padeli P. Papadopoulos ◽  
E. R. Seaquist
Keyword(s):  

2012 ◽  
Vol 8 (S292) ◽  
pp. 199-208 ◽  
Author(s):  
Susanne Aalto

AbstractStudying the molecular phase of the interstellar medium in galaxies is fundamental for the understanding of the onset and evolution of star formation and the growth of supermassive black holes. We can use molecules as observational tools exploiting them as tracers of chemical, physical and dynamical conditions. In this short review, key molecules (e.g. HCN, HCO+, HNC, HC3N, CN, H3O+) in identifying the nature of buried activity and its evolution are discussed including some standard astrochemical scenarios. Furthermore, we can use IR excited molecular emission to probe the very inner regions of luminous infrared galaxies (LIRGs) allowing us to get past the optically thick dust barrier of the compact obscured nuclei, e.g. in the dusty LIRG NGC4418. High resolution studies are often necessary to separate effects of excitation and radiative transport from those of chemistry - one example is absorption and effects of stimulated emission in the ULIRG Arp220. Finally, molecular gas in large scale galactic outflows is briefly discussed.


1983 ◽  
Vol 202 (3) ◽  
pp. 647-656 ◽  
Author(s):  
A. Pedlar ◽  
R. V. Booler ◽  
R. E. Spencer ◽  
O. J. Stewart

2009 ◽  
Vol 5 (H15) ◽  
pp. 401-401
Author(s):  
J. P. Pérez-Beaupuits ◽  
M. Spaans ◽  
M. Hogerheijde ◽  
R. Güsten

AbstractHigh resolution maps of the 12CO J = 6 → 5 line and the [C I]3P2 →3P1 (370 μm) fine-structure transition in the Galactic nebula M17 SW are presented. The maps were obtained using the dual color multiple pixel receiver CHAMP+ on the APEX† telescope.


1998 ◽  
Vol 184 ◽  
pp. 245-246 ◽  
Author(s):  
K. Nishiyama ◽  
N. Nakai

Our survey observation is high spatial resolution (16″) by NRO observatory 45 m antenna and have many galaxies of sample. This high resolution observations (16″ = 1.6 kpc at 20 Mpc) could be to resolve the some characteristic structure, typical molecular gas disk, arm - interarm and optical bar.


1998 ◽  
Vol 184 ◽  
pp. 247-248
Author(s):  
T. Tosaki ◽  
Y. Shioya

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.


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