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相关论文: NGC1614: A Laboratory for Starburst Evolution

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Using the IRAM interferometer, we have observed the nearby starburst galaxy M82 with a 4.2" resolution (~70 pc) in the 1->0 line of 13CO and in the 2.6-mm continuum. The spatial distribution of the 13CO line shows the same gross features as…

天体物理学 · 物理学 2007-05-23 N. Neininger , M. Guelin , U. Klein , S. Garcia-Burillo , R. Wielebinski

Abridged: We present a detailed investigation of the morphological distribution and level of star formation and dust obscuration in the nearby tidally distorted galaxy NGC2442. Spitzer images in the IR at 3.6, 4.5, 5.8, 8.0um, and 24um and…

星系天体物理 · 物理学 2015-05-19 Anna Pancoast , Anna Sajina , Mark Lacy , Alberto Noriega-Crespo , Jeonghee Rho

The chemistry in the central regions of galaxies is expected to be strongly influenced by their nuclear activity. To find the best tracers of nuclear activity is of key importance to understand the processes taking place in the most…

天体物理学 · 物理学 2011-02-11 Sergio Martin , J. Martin-Pintado , R. Mauersberger

The Advanced Camera for Surveys on board the Hubble Space Telescope has been used to obtain deep high-resolution images of the giant early-type galaxy NGC 1316 which is an obvious merger remnant. These observations supersede previous,…

天体物理学 · 物理学 2009-11-10 Paul Goudfrooij , Diane Gilmore , Bradley C. Whitmore , Francois Schweizer

We present new multi-configuration HI aperture synthesis imaging of the nearby dwarf starburst galaxy NGC 625 obtained with the Australia Telescope Compact Array. Total HI column density images show gas well-aligned with the optical major…

天体物理学 · 物理学 2009-11-10 John M. Cannon , N. M. McClure-Griffiths , Evan D. Skillman , Stephanie Cote

NIR K band imaging spectroscopy of the central 8'' (1.3 kpc) in the Wolf-Rayet LINER galaxy NGC6764 shows that the most recent star formation is most likely still unresolved at sub-arcsecond resolution (< 100pc). The continuum source has a…

天体物理学 · 物理学 2009-10-31 E. Schinnerer , A. Eckart , Th. Boller

We present a detailed study of a molecular outflow feature in the nearby starburst galaxy NGC 253 using ALMA. We find that this feature is clearly associated with the edge of NGC 253's prominent ionized outflow, has a projected length of…

We present new ALMA observations of a starburst galaxy at cosmic noon hosting a radio-loud active galactic nucleus: PKS 0529-549 at $z=2.57$. To investigate the conditions of its cold interstellar medium, we use ALMA observations which…

The goal of the present study is to establish the physical origin of dust heating and emission based on radiation transfer models, which self-consistently connect the emission components from diffuse dust and the dust in massive star…

宇宙学与河外天体物理 · 物理学 2015-06-11 Israel Hermelo , Ute Lisenfeld , Monica Relaño , Richard J. Tuffs , Cristina C. Popescu , Brent Groves

This paper presents the first high-resolution SiO map made in an external galaxy. The nucleus of the nearby barred spiral NGC253 has been observed simultaneously in the v=0, J=2-1 line of SiO and in the J=1-0 line of H13CO+ with the IRAM…

天体物理学 · 物理学 2011-05-23 S. Garcia-Burillo , J. Martin-Pintado , A. Fuente , R. Neri

We study mass functions of globular clusters derived from HST/ACS images of the early-type merger remnant galaxy NGC 1316 which hosts a significant population of metal-rich globular clusters of intermediate age (~3 Gyr). For the old,…

宇宙学与河外天体物理 · 物理学 2012-04-27 Paul Goudfrooij

We have investigated the properties of the stellar mass function in the globular cluster NGC6397 using a large set of HST observations that include WFPC2 images in V and I, obtained at ~4' and 10' radial distances, and a series of deep…

天体物理学 · 物理学 2009-10-31 Guido De Marchi , Francesco Paresce , Luigi Pulone

Using star formation histories derived from optically resolved stellar populations in nineteen nearby starburst dwarf galaxies observed with the Hubble Space Telescope, we measure the stellar mass surface densities of stars newly formed in…

We compare the distribution of molecular gas and star formation activity in the bar region of six spirals (NGC 2903, NGC 3627, NGC 4321, NGC 5457, NGC 6946, & IC 342) from the BIMA Survey of Nearby Galaxies (SONG). The molecular gas, traced…

Molecules that trace the high-density regions of the interstellar medium may be used to evaluate the changing physical and chemical environment during the ongoing nuclear activity in (Ultra-)Luminous Infrared Galaxies. The changing ratios…

宇宙学与河外天体物理 · 物理学 2015-05-18 W. A. Baan , A. F. Loenen , M. Spaans

(abridged) We used HST/ACS to obtain deep V- and I-band images of NGC 1569, one of the closest and strongest starburst galaxies in the Universe. These data allowed us to study the underlying old stellar population, aimed at understanding…

We present the results of a detailed optical and near-IR study of the nearby star-forming dwarf galaxy NGC4214. We discuss the stellar content, drawing particular attention to the intermediate-age and/or old field stars, which are used as a…

天体物理学 · 物理学 2009-11-07 Igor O. Drozdovsky , Regina E. Schulte-Ladbeck , Ulrich Hopp , Laura Greggio , Mary M. Crone

The ionising stellar populations of eleven HII regions in the spiral galaxies: NGC628, NGC925, NGC1232 and NGC1637, all of them reported to have solar or oversolar abundances according to empirical calibrations, have been analysed using…

天体物理学 · 物理学 2009-11-07 Marcelo Castellanos , Angeles I. Diaz , Elena Terlevich

The galaxy NGC 6946 contains a gas-star complex of 700 pc in diameter which appears populated by tens of young stellar clusters, and a Super Star Cluster (SSC) as massive as 10$^6$ M$\odot$. The ionized gas, as drawn by the H$\alpha$…

星系天体物理 · 物理学 2009-08-11 M. Carmen Sánchez Gil , Emilio J. Alfaro , Enrique Pérez

We present a study of the molecular gas and interstellar dust distribution in the environs of the HII region NGC 3503 associated with the open cluster Pis 17 with the aim of investigating the spatial distribution of the molecular gas linked…

星系天体物理 · 物理学 2015-06-03 N. U. Duronea , J. Vasquez , C. E. Cappa , M. Corti , E. M. Arnal
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