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We use the ~370 square degrees data from the MWISP CO survey to study the vertical distribution of the molecular clouds (MCs) toward the tangent points in the region of l=[16,52]deg and |b|<5.1deg. The molecular disk consists of two…

Astrophysics of Galaxies · Physics 2021-04-14 Yang Su , Ji Yang , Qing-Zeng Yan , Shaobo Zhang , Hongchi Wang , Yan Sun , Zhiwei Chen , Chen Wang , Xin Zhou , Xuepeng Chen , Zhibo Jiang , Min Wang

We present CO(1-0) and CO(2-1) Swedish-ESO Submillimetre Telescope (SEST) observations of the barred spiral galaxy M83 (NGC5236). The maps cover the entire optical disk. The CO emission is strongly peaked toward the nucleus, which breaks up…

Astrophysics · Physics 2009-11-10 A. A. Lundgren , T. Wiklind , H. Olofsson , G. Rydbeck

We present detections of the CO(J= 1-0) emission line in a sample of four massive star-forming galaxies at z~1.5-2.2 obtained with the Karl G. Jansky Very Large Array (VLA). Combining these observations with previous CO(2-1) and CO(3-2)…

Astrophysics of Galaxies · Physics 2014-06-27 M. Aravena , J. A. Hodge , J. Wagg , C. L. Carilli , E. Daddi , H. Dannerbauer , L. Lentati , D. A. Riechers , M. Sargent , F. Walter

We present deep ALMA CO(5-4) observations of a main sequence, clumpy galaxy at z=1.5 in the HUDF. Thanks to the ~0.5" resolution of the ALMA data, we can link stellar population properties to the CO(5-4) emission on scales of a few kpc. We…

We present Karl G. Jansky Very Large Array (VLA) observations of the CO(2-1) emission in the z=4.05 submillimeter galaxy (SMG) GN20. These high-resolution data allow us to image the molecular gas at 1.3 kpc resolution just 1.6 Gyr after the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Jacqueline A. Hodge , C. L. Carilli , F. Walter , W. J. G. de Blok , D. A. Riechers , E. Daddi , L. Lentati

We report a CO(3-2) detection of 23 molecular clouds in the extended ultraviolet (XUV) disk of the spiral galaxy M83 with ALMA. The observed 1kpc^2 region is at about 1.24 times the optical radius (R25) of the disk, where CO(2-1) was…

We present a high resolution (down to 0.18"), multi-transition imaging study of the molecular gas in the z = 4.05 submillimeter galaxy GN20. GN20 is one of the most luminous starburst galaxy known at z > 4, and is a member of a rich…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 C. L. Carilli , E. Daddi , D. Riechers , F. Walter , A. Weiss , H. Dannerbauer , G. E. Morrison , J. Wagg , Romeel Dave , D. Elbaz , D. Stern , M. Dickinson , M. Krips , M. Aravena

In the last two decades high resolution (< 5 arcsec) CO observations for ~ 150 galaxies have provided a wealth of information about the molecular gas morphologies in the circumnuclear regions. While in samples of 'normal' galaxies the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 D. Espada , S. Martin , P. -Y. Hsieh , P. T. P. Ho , S. Matsushita , L. Verdes-Montenegro , J. Sabater , S. Verley , M. Krips , V. Espigares

We report ALMA observations of the most massive (star forming) galaxy in the redshift range 3<z<4 within the whole GOODS-S field. We detect a large elongated structure of molecular gas around the massive primeval galaxy, traced by the…

Using the IRAM 30m telescope, we have surveyed an unbiased sample of 47 nearby spiral galaxies of very late (Scd-Sm) Hubble-type for emission in the CO(1-0) and CO(2-1) lines. The sensitivity of our data (a few mK) allows detection of about…

Astrophysics · Physics 2009-11-07 T. Boeker , U. Lisenfeld , E. Schinnerer

New observations of CO (J=1->0) line emission from M33, using the 25 element BEARS focal plane array at the Nobeyama Radio Observatory 45-m telescope, in conjunction with existing maps from the BIMA interferometer and the FCRAO 14-m…

Astrophysics · Physics 2011-02-11 E. Rosolowsky , E. Keto , S. Matsushita , S. Willner

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 investigate the molecular gas content and the excitation and fragmentation properties in the central region of the spiral galaxy Messier 81 in both the ^{12}CO(1-0) and ^{12}CO(2-1) transitions. We have recently observed the two…

Astrophysics · Physics 2009-11-13 V. Casasola , F. Combes , D. Bettoni , G. Galletta

The extended ultraviolet (XUV) disks of nearby galaxies show ongoing massive star formation, but their parental molecular clouds remain mostly undetected despite searches in CO(1-0) and CO(2-1). The recent detection of 23 clouds in the…

We present ALMA observations of the CO(1-0) and CO(3-2) line emission tracing filaments of cold molecular gas in the central galaxy of the cluster PKS0745-191. The total molecular gas mass of 4.6 +/- 0.3 x 10^9 solar masses, assuming a…

We present the results of 0.6"-resolution observations of CO J=3-2 line emission in 10 massive star-forming galaxies at z=2.2-2.5 with the Atacama Large Millimeter/submillimeter Array (ALMA). We compare the spatial extent of molecular gas…

Astrophysics of Galaxies · Physics 2023-10-24 Ken-ichi Tadaki , Tadayuki Kodama , Yusei Koyama , Tomoko L. Suzuki , Ikki Mitsuhashi , Ryota Ikeda

We present ALMA CO(1-0) and CO(3-2) observations of the brightest cluster galaxy (BCG) in the 2A 0335+096 galaxy cluster (z = 0.0346). The total molecular gas mass of (1.13+/-0.15) x 10^9 M_sun is divided into two components: a nuclear…

The outer Galaxy presents an optimal setting for investigating molecular clouds and star formation in environments with low metallicity. A total of 72 Galactic edge clouds were surveyed using the CO\,(2--1) line with the IRAM\,30\,m…

We present $^{12}$CO(J=1--0) line observations of 22 low-luminosity spiral galaxies in the Virgo cluster. These data, together with 244 others available in the literature, allow us to build a large sample that we use to study the molecular…

Astrophysics · Physics 2009-08-21 A. Boselli , J. Lequeux , G. Gavazzi

We present an analysis of the region IRAS 08589-4714 with the aim of characterizing the molecular environment. We observed the CO(3-2), ^{13}CO(3-2), C^{18}O(3-2), HCO+(3-2), and HCN(3-2) molecular lines in a region of 150" x 150", centered…

Astrophysics of Galaxies · Physics 2016-10-26 Hugo P. Saldaño , J. Vásquez , C. E. Cappa , M. Gómez , N. U. Duronea , M. Rubio
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