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Related papers: Molecular Gas in Optically Selected Mergers

200 papers

We performed N-body/SPH simulations of merging gas rich disk-galaxies with a mass ratio of 3:1. A stellar disk and bulge component and a dark halo is realized with collisionless particles, the gas is simulated using SPH particles. In this…

Astrophysics · Physics 2007-05-23 Thorsten Naab , Andreas Burkert

We present the images and kinematics of circumnuclear molecular gas from 100 pc scale down to 10 pc scale in nearby active galactic nuclei (AGNs) using the Submillimeter Array (SMA) and the Plateau de Bure Interferometer (PdBI). We have…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Satoki Matsushita

We present observations of the molecular gas in the nuclear environment of three prototypical low luminosity AGN (LLAGN), based on VLT/SINFONI AO-assisted integral-field spectroscopy of H2 1-0 S(1) emission at angular resolutions of ~0.17".…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 F. Müller-Sánchez , M. A. Prieto , M. Mezcua , R. I. Davies , M. Malkan , M. Elitzur

Studying molecular gas properties in merging galaxies gives us important clues to the onset and evolution of interaction-triggered starbursts. NGC4194 is particularly interesting to study since its FIR-to-CO luminosity ratio rivals that of…

Astrophysics of Galaxies · Physics 2014-09-10 S. König , S. Aalto , L. Lindroos , S. Muller , J. S. Gallagher , R. J. Beswick , G. Petitpas , E. Jütte

We present a study of the molecular gas in early-mid stage major-mergers, with a sample of 43 major-merger galaxy pairs selected from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey and a control sample of 195…

Astrophysics of Galaxies · Physics 2024-05-01 Qingzheng Yu , Taotao Fang , Cong Kevin Xu , Shuai Feng , Siyi Feng , Yu Gao , Xue-Jian Jiang , Ute Lisenfeld

We present the first spatially resolved spectroscopic imaging observations of the 12CO(1-0) line emission in the central 2.5 kpc of the Seyfert 1 galaxy NGC4151, obtained with the IRAM Plateau de Bure Interferometer (PdBI). Most of the cold…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 G. Dumas , E. Schinnerer , C. G. Mundell

We present the highest resolution (1") $^{12}$CO(1-0) observations of molecular gas in the dwarf starburst galaxy NGC 625, to date, obtained with ALMA. Molecular gas is distributed in discrete clouds within an area of $0.4$ kpc$^2$ and does…

Astrophysics of Galaxies · Physics 2020-05-27 Nia Imara , Ilse De Looze , Christopher M. Faesi , Diane Cormier

Observations show that molecular gas in spiral galaxies is organized into a network of interconnected systems through the gravitational coupling of multi-scale hub-filament structures. Building on this picture, we model molecular gas in the…

Astrophysics of Galaxies · Physics 2025-01-31 J. W. Zhou , Guang-Xing Li

We present molecular gas reservoirs of eighteen galaxies associated with the XMMXCS J2215.9-1738 cluster at z=1.46. From Band 7 and Band 3 data of the Atacama Large Millimeter/submillimeter Array (ALMA), we detect dust continuum emission at…

High resolution OVRO aperture synthesis maps of the 12CO 1-0 emission in the `Medusa' galaxy merger (NGC4194) reveal the molecular emission being surprisingly extended. It is distributed on a total scale of 25$''$ (4.7 kpc) - despite the…

Astrophysics · Physics 2007-05-23 S. Aalto , S. Huettemeister

Observations of 12CO J=1-0 and HCN J=1-0 emission from NGC 5194 (M51) made with the 50~meter Large Millimeter Telescope and the SEQUOIA focal plane array are presented. Using the HCN to CO ratio, we examine the dense gas mass fraction over…

We made CO and HCN simultaneous observations of lenticular galaxies, NGC 404, NGC 3593 and NGC 4293, and detected HCN emission in NGC 3593 and NGC 4293 as well as CO in all the galaxies. The I(HCN)/I(CO) ratios were 0.025+-0.006 and…

Astrophysics · Physics 2015-06-24 N. Kuno , N. Nakai , K. Sorai , K. Nishiyama , B. Vila-Vlaro

We present Herschel, ALMA, and MUSE observations of the molecular ring of Messier 104, also known as the Sombrero galaxy. These previously unpublished archival data shed new light on the content of the interstellar medium of M104. In…

Astrophysics of Galaxies · Physics 2022-12-21 Jessica Sutter , Dario Fadda

Most models of double-barred galaxies suggest that a molecular gas component is crucial for maintaining long-lived nuclear bars. We have undertaken a CO survey in an attempt to determine the gas content of these systems and to locate double…

Astrophysics · Physics 2009-11-10 Glen Petitpas , Christine Wilson

NGC 4314 is an early-type barred galaxy containing a nuclear ring of recent star formation. We present CO(1-0) interferometer data of the bar and circumnuclear region with 2.3 x 2.2 arcsec spatial resolution and 13 km/s velocity resolution…

Astrophysics · Physics 2009-10-28 G. Fritz Benedict , Beverly J. Smith , Jeffrey D. P. Kenney

A short 30 minute ALMA observation of the early-type galaxy NGC 5044, which resides at the center of an X-ray bright group with a moderate cooling flow, has detected 24 molecular structures within the central 2.5 kpc. The masses of the…

We present recent ALMA observations of the CO(1-0) and CO(3-2) emission lines in the brightest cluster galaxy of RXCJ1504.1$-$0248, which is one of the most extreme cool core clusters known. The central galaxy contains $1.9\times…

Astrophysics of Galaxies · Physics 2018-08-29 A. N. Vantyghem , B. R. McNamara , H. R. Russell , A. C. Edge , P. E. J. Nulsen , F. Combes , A. C. Fabian , M. McDonald , P. Salome

We present, for the first time, direct evidence that, in a merger of disk galaxies, the preexisting central metallicities will mix as a result of gas being transported in the merger interface region, along the line that joins the two…

Astrophysics of Galaxies · Physics 2015-06-23 S. Torres-Flores , C. Mendes de Oliveira , P. Amram , M. Alfaro-Cuello , E. R. Carrasco , D. F. de Mello

We present observations with the IRAM Plateau de Bure Interferometer of three QSOs at z>5 aimed at detecting molecular gas in their host galaxies as traced by CO transitions. CO (5-4) is detected in SDSSJ033829.31+002156.3 at z=5.0267,…

We report the observations of J=1-0 of HCN, HCO+, H13CO+, and H13CN, HC3N (J=11-10) emission towards 135 massive star-forming clumps, as part of the ATOMS (ALMA Three-millimeter Observations of Massive Star-forming regions) Survey. We…