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Related papers: An energetic high-velocity compact cloud: CO$-$0.3…

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We present large area, fully-sampled maps of the Carina molecular cloud complex in the CO (J = 4 - 3) and neutral carbon [CI] 3P1 - 3P0 transitions. These data were obtained using the 1.7 meter diameter Antarctic Submillimeter Telescope and…

Astrophysics · Physics 2016-08-30 Xiaolei Zhang , Youngung Lee , Alberto Bolatto , Antony A. Stark

New 21cm observations with the Green Bank Telescope show that a significant fraction of the HI in the inner Galaxy's halo 1 kpc from the midplane exists in the form of discrete clouds. Some look very much like a Spitzer ``standard'' diffuse…

Astrophysics · Physics 2007-05-23 Felix J. Lockman

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 have analyzed new CO($J$ = 1-0) data in the region of a reflection nebula NGC 2023 with a particular focus on the detailed kinematical properties of the molecular gas. The results show that there are two velocity components which…

Astrophysics of Galaxies · Physics 2021-07-07 R. Yamada , R. Enokiya , H. Sano , S. Fujita , M. Kohno , D. Tsutsumi , A. Nishimura , K. Tachihara , Y. Fukui

We report 350 and 230 GHz observations of molecular gas and dust in the starburst nucleus of NGC 253 at 20-40 pc (1"-2") resolution. The data contain CO(3-2), HCN(4-3), CO(2-1), 13CO(2-1), C18O(2-1), and continuum at 0.87 mm and 1.3 mm…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Kazushi Sakamoto , Rui-Qing Mao , Satoki Matsushita , Alison B. Peck , Tsuyoshi Sawada , Martina C. Wiedner

This paper reports the discovery of a helical molecular cloud in the central molecular zone (CMZ) of our Galaxy. This "pigtail" molecular cloud appears at (l, b, V_LSR) ~ (-0.7deg, +0.0deg, -70 to -30 km/s), with a spatial size of ~ (20…

Astrophysics of Galaxies · Physics 2015-06-05 Shinji Matsumura , Tomoharu Oka , Kunihiko Tanaka , Makoto Nagai , Kazuhisa Kamegai , Tetsuo Hasegawa

We present an analysis of the outer Galaxy giant molecular filament (GMF) G214.5-1.8 (G214.5) using IRAM 30m data of $^{12}$CO, $^{13}$CO and C$^{18}$O. We find that the $^{12}$CO (1-0) and (2-1) derived excitation temperatures are near…

Astrophysics of Galaxies · Physics 2024-01-11 S. D. Clarke , V. A. Makeev , Á. Sánchez-Monge , G. M. Williams , Y. -W. Tang , S. Walch , R. Higgins , P. C. Nürnberger , S. Suri

We obtained the first view in H$^{13}$CO$^+$ $J=1-0$ and a high resolution map in thermal SiO lines of G0.11$-$0.11, which is a molecular cloud situated between the Galactic Center radio arc and Sgr A. From a comparison with previous line…

Astrophysics · Physics 2009-11-13 T. Handa , M. Sakano , S. Naito , M. Hiramatsu , M. Tsuboi

We report the results of millimeter-wave molecular line observations of the Tornado Nebula (G357.7--0.1), which is a bright radio source behind the Galactic Center region. A 15'x15' area was mapped in the J=1--0 lines of CO, 13CO, and HCO+…

Astrophysics of Galaxies · Physics 2015-06-22 Daisuke Sakai , Tomoharu Oka , Kunihiko Tanaka , Shinji Matsumura , Kodai Miura , Shunya Takekawa

We present new SMA and PdBI observations of the intermediate-mass object IRAS 22198+6336 in the millimeter continuum and in several molecular line transitions. The millimeter continuum emission reveals a strong and compact source with a…

Astrophysics of Galaxies · Physics 2015-05-19 Alvaro Sanchez-Monge , Aina Palau , Robert Estalella , Stan Kurtz , Qizhou Zhang , James Di Francesco , Debra Shepherd

We present SiO J=2-1 maps of the Sgr B2 molecular cloud, which show shocked gas with a turbulent substructure comprising at least three cavities at velocities of [10,40] km s$^{-1}$ and an arc at velocities of [-20,10] km s$^{-1}$. The…

This study presents a catalog of 8107 molecular clouds that covers the entire Galactic plane and includes 98% of the $^{12}$CO emission observed within $b\pm5^\circ$. The catalog was produced using a hierarchical cluster identification…

Astrophysics of Galaxies · Physics 2017-01-11 Marc-Antoine Miville-Deschênes , Norman Murray , Eve J. Lee

We have identified a class of high-velocity clouds which are compact and apparently isolated. The clouds are compact in that they have angular sizes less than 2 degrees FWHM. They are isolated in that they are separated from neighboring…

Astrophysics · Physics 2007-05-23 R. Braun , W. B. Burton

Young HII regions are an important site to study O star formation based on distributions of ionized and molecular gas. We revealed that two molecular clouds at $\sim 48$ km s$^{-1}$ and $\sim 53$ km s$^{-1}$ are associated with the HII…

We present the results of observations from the IRAM array of the submm galaxy SMMJ16359+6612 lying at z=2.516 behind the massive cluster A2218. The foreground gravitational lens produces 3 images with a total mag. of 45 of this faint submm…

We report the detection of CO molecular line emission in the z=4.5 millimeter-detected galaxy COSMOS_J100054+023436 (hereafter: J100+0234) using the IRAM Plateau de Bure interferometer (PdBI) and NRAO's Very Large Array (VLA). The CO(4-3)…

We present fully-sampled maps of 461 GHz CO (4-3), 807 GHz CO (7-6), and 492 GHz [CI] (3P1-3P0) emission from the inner 3 degrees of the Galactic Center region taken with the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO)…

The physical state of cold cloud clumps has a great impact on the process and efficiency of star formation and the masses of the forming stars inside these objects. The sub-millimetre survey of the Planck space observatory and the…

Astrophysics of Galaxies · Physics 2017-10-25 O. Fehér , M. Juvela , T. Lunttila , J. Montillaud , I. Ristorcelli , S. Zahorecz , L. V. Tóth

The youngest known Galactic supernova remnant (SNR) G1.9+0.3 has high-velocity supernova shock beyond 10000 km s-1, and it is considered to be one of the major candidates of a PeVatron. Despite these outstanding properties, the surrounding…

Using the IRAM 30m telescope we have surveyed a $1\times0.8^{\circ}$ part of the Orion molecular cloud in the $^{12}$CO and $^{13}$CO (2-1) lines with a maximal spatial resolution of $\sim$11" and spectral resolution of $\sim$ 0.4…

Astrophysics of Galaxies · Physics 2015-06-22 Olivier Berne , Nuria Marcelino , Jose Cernicharo
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