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Related papers: NGC1614: A Laboratory for Starburst Evolution

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We present results from a study of the dense circum-nuclear molecular gas of starburst galaxies. The study aims to investigate the interplay between starbursts, active galactic nuclei and molecular gas. We characterise the dense gas traced…

We present Chandra X-ray images for the interacting galaxy pair NGC 7714/5. In addition to the unresolved starburst nucleus, a variable point source with L(X) ~ 10^40 erg/s was detected 1.5" (270 pc) northwest of the nucleus, coincident…

Astrophysics · Physics 2009-11-10 Beverly J. Smith , Curtis Struck , Michael A. Nowak

We present high-resolution archival Atacama Large Millimeter/submillimeter Array (ALMA) CO J=3-2 and J=6-5 and HCO+ J=4-3 observations and new CARMA CO and 13CO J=1-0 observations of the luminous infrared galaxy NGC 1614. The…

Astrophysics of Galaxies · Physics 2015-06-23 Kazimierz Sliwa , Christine D. Wilson , Daisuke Iono , Alison Peck , Satoki Matsushita

NGC 2915 is a unique nearby galaxy that is classified as an isolated blue compact dwarf based on its optical appearance but has an extremely extended H i gas disk with prominent Sd-type spiral arms. To unveil the starburst-triggering…

Astrophysics of Galaxies · Physics 2022-12-23 Yimeng Tang , Bojun Tao , Hong-Xin Zhang , Guangwen Chen , Yulong Gao , Zesen Lin , Yao Yao , Yong Shi , Xu Kong

M17 is one of the youngest and most massive nearby star-formation regions in the Galaxy. It features a bright H II region erupting as a blister from the side of a giant molecular cloud (GMC). Combining photometry from the Spitzer GLIMPSE…

We present evidence that some of the compact, luminous, young star clusters recently discovered through images taken with the Hubble Space Telescope (HST) have masses comparable to those of old Galactic globular clusters. The "super star…

Astrophysics · Physics 2009-10-28 Luis C. Ho , Alexei V. Filippenko

We investigated the physical properties of molecular clouds and star formation processes around infrared bubbles which are essentially expanding HII regions. We performed observations of 13 galactic infrared bubble fields containing 18…

Astrophysics of Galaxies · Physics 2016-10-26 Qing-zeng Yan , Ye Xu , Bo Zhang , Deng-rong Lu , Xi Chen , Zheng-hong Tang

ALMA imaging of the cold molecular medium in the nearby starburst galaxy NGC 1808 is presented. The observations reveal the distribution of molecular gas, traced by $^{12}$CO (1-0) and $^{12}$CO (3-2), and continuum (93 and 350 GHz) across…

Astrophysics of Galaxies · Physics 2017-11-15 Dragan Salak , Yuto Tomiyasu , Naomasa Nakai , Nario Kuno , Yusuke Miyamoto , Hiroyuki Kaneko

Molecular clouds (MCs) in galaxies are complex places with many phases. It is, therefore, essential to study the physics and kinematics of the MCs using multiple emission lines. We probe the physics of the molecular gas and dust in the…

Astrophysics of Galaxies · Physics 2022-03-25 Selçuk Topal

We present a multi-wavelength analysis of the infrared dust bubble S24, and its environs, with the aim of investigating the characteristics of the molecular gas and the interstellar dust linked to them, and analyzing the evolutionary status…

Astrophysics of Galaxies · Physics 2015-12-16 C. E. Cappa , N. U. Duronea , V. Firpo , J. Vasquez , C. H. López-Caraballo , M. Rubio , M. M. Vazzano

We present new multi-frequency radio continuum imaging of the dwarf starburst galaxy NGC 625 obtained with the Very Large Array. Data at 20, 6, and 3.6 cm reveal global continuum emission dominated by free-free emission, with only mild…

Astrophysics · Physics 2009-11-10 John M. Cannon , Evan D. Skillman

We present a survey of 3 mm molecular lines in IRAS 04296+2923, one of the brightest known molecular-line emitting galaxies, and one of the closest LIRGs. Data are from the Owens Valley and CARMA millimeter interferometers. Species detected…

Astrophysics of Galaxies · Physics 2015-06-23 David S. Meier , Jean L. Turner , Sara C. Beck

We present a dynamical analysis to infer the structural parameters and properties of the two nearby, compact, high velocity dispersion galaxies MRK1216 & NGC1277. Combining deep HST imaging, wide-field IFU stellar kinematics, and…

We present CO(1-0) and CO(2-1) maps of the interacting barred LINER/Seyfert 2 galaxy NGC 3627 obtained with the IRAM interferometer at resolutions of 2.1" x 1.3" and 0.9" x 0.6", respectively. The molecular gas emission shows a nuclear…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 V. Casasola , L. K. Hunt , F. Combes , S. Garcia-Burillo , R. Neri

We have initiated the first CO interferometer survey of early-type spiral galaxies (S0-Sab). We observed five early-type spiral galaxies with HII nuclei (indicating circumnuclear starburst activities). These observations indicate gas masses…

Astrophysics · Physics 2009-11-10 J. Koda , T. Okuda , K. Nakanishi , K. Kohno , S. Ishizuki , N. Kuno , S. K. Okumura

NGC 3621 is a late-type (Sd) spiral galaxy with an active nucleus, previously detected through mid-infrared [Ne V] line emission. Archival Hubble Space Telescope (HST) images reveal that the galaxy contains a bright and compact nuclear star…

Astrophysics · Physics 2008-12-18 A. J. Barth , L. E. Strigari , M. C. Bentz , J. E. Greene , L. C. Ho

(Abridged) We present new K-band spectroscopy for a sample of 48 starburst galaxies, obtained using UKIRT in Hawaii. This constitutes a fair sample of the most common types of starburst galaxies found in the nearby Universe. The variety of…

Astrophysics · Physics 2009-11-06 R. Coziol , R. Doyon , S. Demers

We present CO(1-0) and CO(2-1) maps of the LINER galaxy NGC7217, obtained with the IRAM interferometer, at 2.4"x1.9" and 1.2"x0.8" resolution respectively. The nuclear ring (at r=12"=0.8kpc) dominates the CO maps, and has a remarkable sharp…

We present the detection of an enormous disc of cool neutral hydrogen (HI) gas surrounding the S0 galaxy NGC 612, which hosts one of the nearest powerful radio sources (PKS 0131-36). Using the Australia Telescope Compact Array, we detect…

We present new interferometer observations of the 12CO(1-0) and 12CO(2-1) line emission of NGC 1068 with a resolution of 0.7''. The molecular gas in the inner 5'' is resolved into a ring with two bright knots east and west of the nuclear…

Astrophysics · Physics 2009-10-31 E. Schinnerer , A. Eckart , L. J. Tacconi , R. Genzel , D. Downes