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相关论文: Molecular gas in the elliptical galaxy NGC759. Int…

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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…

星系天体物理 · 物理学 2019-01-09 B. Vila-Vilaro , D. Espada , P. Cortes , S. Leon , E. Pompei , J. Cepa

We present the first detection of CO emission lines in the Halpha filaments at distances as far as 50 kpc from the centre of the galaxy NGC 1275. This gas is probably dense (>=10E3 cm-3). However, it is not possible to accurately determine…

宇宙学与河外天体物理 · 物理学 2015-05-28 P. Salomé , F. Combes , Y. Revaz , D. Downes , A. C. Edge , A. C. Fabian

I present interferometric images (approx. 7" resolution) of CO emission in five elliptical galaxies and nondetections in two others. These data double the number of elliptical galaxies whose CO emission has been fully mapped. The sample…

天体物理学 · 物理学 2009-11-07 L. M. Young

The nearby dwarf elliptical galaxy NGC 205 offers a unique opportunity for high resolution studies of the interstellar medium in an elliptical galaxy. This paper investigates the distribution of molecular gas, molecular line ratios, and the…

天体物理学 · 物理学 2009-10-31 L. M. Young

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…

天体物理学 · 物理学 2009-11-10 A. A. Lundgren , T. Wiklind , H. Olofsson , G. Rydbeck

We present fully sampled ^{12}$CO, ^{13}CO J=2-1, 3-2 maps of the inner $\sim 1'\times 1'$ region of NGC 1068. We combine these measurements with an existing interferometric map of ^{12}CO J=1-0 that includes single dish data and thus…

天体物理学 · 物理学 2009-10-31 Padeli. P. Papadopoulos , E. R. Seaquist

The dwarf elliptical galaxy NGC 185- the closest early-type galaxy with detectable molecular gas- offers a unique opportunity for high angular resolution studies of the interstellar medium in early-type galaxies. I present interferometric…

天体物理学 · 物理学 2009-11-06 L. M. Young

We present observations in CO(3-2) that, combined with previous observations in CO(2-1), constrain the physical properties of the filamentary molecular gas in the central $\sim$6.5 kpc of NGC 1275, the central giant elliptical galaxy of the…

星系天体物理 · 物理学 2017-11-29 Jeremy Lim , Dinh-V-Trung , Jan Vrtilek , Laurence P. David , William Forman

We present sensitive interferometric 12CO, 13CO and HCN observations of the barred spiral galaxy NGC7479, known to be one of the few barred galaxies with a continuous gas-filled bar. We focus on the investigation and interpretation of…

天体物理学 · 物理学 2007-05-23 S. Huettemeister , S. Aalto , M. Das , W. F. Wall

We recently found extended CO(2-1) emission from cold molecular gas embedded in the network of Halpha filaments surrounding the galaxy NGC 1275 (Salome et al. 2006). We now present CO(2-1) interferometer maps of the eastern filaments, at…

天体物理学 · 物理学 2009-11-13 P. Salomé , Y. Revaz , F. Combes , J. Pety , D. Downes , A. C. Edge , A. C. Fabian

We report $^{12}$CO($J=$3--2) observations of 15 nearby elliptical galaxies carried out with the ASTE telescope. Thirteen were selected without regard to the presence of other tracers of cold interstellar matter. CO emission was detected…

天体物理学 · 物理学 2015-06-24 Hiroyuki Nakanishi , Tomoka Tosaki , Kotaro Kohno , Yoshiaki Sofue , Nario Kuno

We report on observations of CO(1-0) emission from the chemically young starburst galaxy Mrk 109. These observations were part of a study to constrain the O2/CO ratio in metal-deficient galaxies, which were motivated by theoretical work…

天体物理学 · 物理学 2016-08-30 D. T. Frayer , E. R. Seaquist , T. X. Thuan , A. Sievers

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…

天体物理学 · 物理学 2009-11-13 V. Casasola , F. Combes , D. Bettoni , G. Galletta

We present IRAM 30m telescope observations of the CO(1-0) and (2-1) lines in a sample of 11 group-dominant elliptical galaxies selected from the CLoGS nearby groups sample. Our observations confirm the presence of molecular gas in 4 of the…

星系天体物理 · 物理学 2015-01-14 E. O'Sullivan , F. Combes , S. Hamer , P. Salomé , A. Babul , S. Raychaudhury

We have studied the molecular gas in the vicinity of low-luminosity active galactic nuclei (AGNs) in three bulge-less spiral galaxies: NGC 1042, NGC 4178, and NGC 4395. The (1-0) and (2-1) transitions of gaseous carbon monoxide (CO) are…

宇宙学与河外天体物理 · 物理学 2015-05-30 Torsten Boeker , Eva Schinnerer , Ute Lisenfeld

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…

宇宙学与河外天体物理 · 物理学 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 present IRAM 30m observations of molecular lines of CO and its isotopologues from the massive spiral galaxy NGC 5908 selected from the CGM-MASS sample. $^{12}$CO $J=1-0$, $^{12}$CO $J=2-1$, and $^{13}$CO $J=1-0$ lines have been detected…

星系天体物理 · 物理学 2019-05-29 Jiang-Tao Li , Ping Zhou , Xuejian Jiang , Joel N. Bregman , Yu Gao

Maps of the J=2-1 12CO emission from the SbII galaxy NGC 7331 show a low-contrast ring at a radius of about 3.5 kpc. There is no evidence for a pronounced central hole in the CO distribution as claimed by others. The molecular ring is just…

天体物理学 · 物理学 2007-05-23 F. P. Israel , F. Baas

We have detected extremely wide (1100 km/s) CO(1-0) emission from NGC 1144, an interacting, luminous infrared galaxy that is the dominant component of the Arp 118 system. The observations show that NGC 1144 is one of the most CO luminous…

天体物理学 · 物理学 2009-10-30 Yu Gao , P. M. Solomon , D. Downes , S. J. E. Radford

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…

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