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Related papers: Molecular gas in NGC6946

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The first detection of CO emission in a Fanaroff-Riley Class II (i.e., edge-brightened radio morphology) radio galaxy is presented. Multi- wavelength (0.36-2.17 micron) imaging of 3C 293 shows it to be a disk galaxy with an optical jet or…

Astrophysics · Physics 2009-10-31 A. S. Evans , D. B. Sanders , J. A. Surace , J. M. Mazzarella

Spatial and kinematical correlations between HI and CO (2-1) emission of the southern spiral galaxy NGC4945 are studied with a common angular (23 arcsec) and velocity resolution (7 km/s). The 21cm continuum emission is also observed. The HI…

Astrophysics · Physics 2009-11-07 M. Ott , J. B. Whiteoak , C. Henkel , R. Wielebinski

We present the results of CO interferometric observations of the southern elliptical galaxy NGC3557 with ALMA. We have detected both the CO(1-0) emission line and a relatively strong continuum at 3mm. The continuum shows a flat-spectrum…

Astrophysics of Galaxies · Physics 2019-01-09 B. Vila-Vilaro , D. Espada , P. Cortes , S. Leon , E. Pompei , J. Cepa

We compare the distribution of molecular gas and star formation activity in the bar region of six spirals (NGC 2903, NGC 3627, NGC 4321, NGC 5457, NGC 6946, & IC 342) from the BIMA Survey of Nearby Galaxies (SONG). The molecular gas, traced…

We present a new 12CO(J=1-0)-line survey of the Andromeda galaxy, M31, covering the bright disk with the highest resolution to date (85 pc along the major axis), observed On-the-Fly (in italics) with the IRAM 30-m telescope. We discuss the…

Within the NUclei of GAlaxies project we have obtained IRAM PdBI and 30m 12CO(1-0) and 12CO(2-1) observations of the spiral galaxy NGC 6951. Previous work shows that there is indirect evidence of gas inflow from 3 kpc down to small radii: a…

Astrophysics of Galaxies · Physics 2015-05-27 T. P. R. van der Laan , E. Schinnerer , F. Boone , S. Garcia-Burillo , F. Combes , S. Haan , S. Leon , L. Hunt , A. J. Baker

We present large-area maps of the CO J=3-2 emission obtained at the James Clerk Maxwell Telescope for four spiral galaxies in the Virgo Cluster. We combine these data with published CO J=1-0, 24 micron, and Halpha images to measure the CO…

We present the results of a galaxy-wide study of molecular gas and star formation in a sample of 76 HII regions in the nearby spiral galaxy NGC 300. We have measured the molecular gas at 250 pc scales using pointed CO(J=2-1) observations…

Astrophysics of Galaxies · Physics 2015-06-19 Christopher M. Faesi , Charles J. Lada , Jan Forbrich , Karl Menten , Herve Bouy

We present a survey of CO(3-2) molecular line emission in the circumnuclear region of M31 with the James Clerk Maxwell Telescope (JCMT), aiming to explore the physical conditions of the molecular gas. Significant CO(3-2) lines are detected…

Astrophysics of Galaxies · Physics 2019-01-16 Zongnan Li , Zhiyuan Li , Ping Zhou , Yu Gao , Xue-Jian Jiang , Hui Dong

The [CII] fine-structure transition at 158 micron is frequently the brightest far-infrared line in galaxies. Due to its low ionization potential, C+ can trace the ionized, atomic, and molecular phases of the ISM. We present velocity…

We analyze the carbon monoxide emission around the star WR 16 aiming to chieve a better understanding of the interaction between massive stars with their surroundings. We study the molecular gas in a region of 86.'4 x 86.'4 in size using CO…

Solar and Stellar Astrophysics · Physics 2015-06-12 N. U. Duronea , E. M. Arnal , L. Bronfman

We present the results of a search for molecular gas emission from a star-forming galaxy at z = 4.9. The galaxy benefits from magnification of 22 +/- 5x due to strong gravitational lensing by the foreground cluster MS1358+62. We target the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 R. C. Livermore , A. M. Swinbank , I. Smail , R. G. Bower , K. E. K. Coppin , R. A. Crain , A. C. Edge , J. E. Geach , J. Richard

NGC 6764 is a composite galaxy exhibiting central activity (LINER) and recent massive star formation (Wolf-Rayet galaxy). We report new high-resolution interferometric data of the CO(1--0) and CO(2--1) emission in the central part of the…

Astrophysics · Physics 2007-05-23 Stephane Leon , Andreas Eckart , Seppo Laine , Eva Schinnerer

We present new ALMA observations of a starburst galaxy at cosmic noon hosting a radio-loud active galactic nucleus: PKS 0529-549 at $z=2.57$. To investigate the conditions of its cold interstellar medium, we use ALMA observations which…

We present interferometric observations of CO lines (12CO(1-0, 2-1) and 13CO(1-0, 2-1)) and dense gas tracers (HCN(1-0), HCO+(1-0), HNC(1-0) and HNCO(4-3)) in two nearby edge-on barred lenticular galaxies, NGC 4710 and NGC 5866, with most…

Astrophysics of Galaxies · Physics 2016-09-21 Selcuk Topal , Martin Bureau , Timothy A. Davis , Melanie Krips , Lisa M. Young , Alison F. Crocker

We study the molecular gas properties of two star-forming galaxies separated by 6 kpc in the projected space and belonging to a galaxy cluster selected from the Irac Shallow Cluster Survey, at a redshift $z=1.2$, i.e., $\sim2$ Gyr after the…

We present high-resolution (0.94" $\approx$ 55 pc) ALMA CO(2-1) and 13CO(2-1) observations of the highly inclined (i~87.5 deg) galaxy NGC 4565 covering out to galactocentric radius Rgal > $\pm$ 17 kpc. The combination of sensitivity and…

We present the results of spectroscopy of 39 H II regions in the spiral galaxy NGC 6946. The spectral observations were carried out at the 6-m BTA telescope of the SAO RAS with the SCORPIO focal reducer in the multi-slit mode with the…

Cosmology and Nongalactic Astrophysics · Physics 2013-03-27 Alexander S. Gusev , Firouz Sakhibov , Sergey N. Dodonov

[Abridged] Do some environments favor efficient conversion of molecular gas into stars? To answer this, we need to be able to estimate the H2 mass. Traditionally, this is done using CO and a few assumptions but the Herschel observations in…

In this review, I discuss some highlights of recent research on molecular gas in galaxies; large-scale CO maps of nearby galaxies are being made, which extend our knowledge on global properties, radial gradients, and spiral structure of the…

Astrophysics · Physics 2016-08-30 F. Combes