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Related papers: Mapping the submillimeter spiral wave in NGC 6946

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We report new cm-wave measurements at five frequencies between 15 and 18GHz of the continuum emission from the reportedly anomalous "region 4" of the nearby galaxy NGC6946. We find that the emission in this frequency range is significantly…

Using far-infrared 240 micron and near-infrared K band data from the COBE/DIRBE instrument, we model the Galactic stellar and dust distribution. Making the assumption that the Galaxy is transparent in the 240 micron band, the dust emission…

Astrophysics · Physics 2007-05-23 Ronald Drimmel , David Spergel

Dust emission in the far-infrared (FIR) characterizes the temperature and quantity of interstellar dust in a spiral disk. The three Spitzer/MIPS bands are well suited to measuring the gradient in temperature and the total optical depth in…

TIGER integral-field spectrography and HST/WFPC2 imaging of the E3 galaxy NGC 2974 are used to derive the kinematics of the stellar and ionized gas components in its central 500 pc. We derive a numerical two-integral distribution function…

Astrophysics · Physics 2009-11-10 Eric Emsellem , Paul Goudfrooij , Pierre Ferruit

We report the detection of vertically extended far-ultraviolet (FUV) and near-UV emissions in an edge-on spiral galaxy NGC 891, which we interpret as being due to dust-scattered starlight. Three-dimensional radiative transfer models are…

Astrophysics of Galaxies · Physics 2015-06-19 Kwang-Il Seon , Adolf N. Witt , Jong-Ho Shinn , Il-Joong Kim

We use observational properties of galaxies accumulated in the Updated Nearby Galaxy Catalog to derive a dark matter mass of luminous galaxies via motions of their companions. The data on orbital-to-stellar mass ratio are presented for 15…

Astrophysics of Galaxies · Physics 2015-06-19 Igor D. Karachentsev , Yuri N. Kudrya

Supermassive black hole masses (MBH) can dynamically be estimated with various methods and using different kinematic tracers. Different methods have only been cross-checked for a small number of galaxies and often show discrepancies. To…

Context. We present a deep XMM-Newton observation of the massive, edge-on galaxy NGC 5746. The total exposure time of 250 ks provides unprecedented sensitivity to study the diffuse hot gas in the halo, significantly surpassing the depth of…

Astrophysics of Galaxies · Physics 2025-10-02 Roman Laktionov , Manami Sasaki , Jörn Wilms

We present new ALMA CO(2--1) observations of two well studied group-centered elliptical galaxies: NGC~4636 and NGC~5846. In addition, we include a revised analysis of Cycle 0 ALMA observations of the central galaxy in the NGC~5044 group…

A survey of CO(3-2) emission from optically visible oxygen-rich Mira variable stars within 500 pc of the sun was conducted. A molecular envelope was detected surrounding 36 of the 66 stars examined. Some of these stars have lower outflow…

Astrophysics · Physics 2009-10-28 K. Young

We have analyzed HST and ground-based data to characterize the different gas phases and their interaction with the MYC in NGC 604, a GHR in M33. The warm ionized gas is made out of two components: a high-excitation, high-surface brightness…

Astrophysics · Physics 2016-08-16 J. Maíz-Apellániz , E. Pérez , J. M. Mas-Hesse

We present the results of a study of discrete X-ray sources in NGC 6946 using a deep Chandra ACIS observation. Based on the slope of the log N-log S distribution and the general correlation of sources with the spiral arms, we infer that the…

Astrophysics · Physics 2009-11-07 S. S. Holt , E. M. Schlegel , U. Hwang , R. Petre

Observations of edge-on galaxies allow us to investigate the vertical extent and properties of dust, gas and stellar distributions. NGC 891 has been studied for decades and represents one of the best studied cases of an edge-on galaxy. We…

Astrophysics of Galaxies · Physics 2016-01-25 M. Bocchio , S. Bianchi , L. K. Hunt , R. Schneider

We present the highest resolution --- 15 pc (0.03'') --- ALMA $^{12}$CO(2-1) line emission and 1.3mm continuum maps, tracers of the molecular gas and dust, respectively, in the nearby merging galaxy system NGC 6240, that hosts two…

We report the detection of differential gas column densities in three gravitational lenses, MG0414+0534, HE1104-1805, and PKS1830-211. Combined with the previous differential column density measurements in B1600+434 and Q2237+0305 and the…

Astrophysics · Physics 2009-11-13 Xinyu Dai , Christopher S. Kochanek , George Chartas , Smita Mathur

We aim to explore the capabilities of dust emission and rays for probing the properties of the interstellar medium in the nearby anti-centre region, using gamma-ray observations with the Fermi Large Area Telescope (LAT), and the thermal…

High Energy Astrophysical Phenomena · Physics 2017-05-10 Q. Remy , I. A. Grenier , D. J. Marshall , J. M. Casandjian

We report the detection of CO(3-2) emission from the submillimeter-selected hyperluminous galaxy SMM 02399-0136. This galaxy is the brightest source detected in the recent SCUBA surveys of the submillimeter sky. The optical counterpart of…

Astrophysics · Physics 2009-10-30 D. T. Frayer , R. J. Ivison , N. Z. Scoville , M. Yun , A. S. Evans , Ian Smail , A. W. Blain , J. -P. Kneib

A comparison of the COBE, Diffuse Infrared Background Experiment (DIRBE) all-sky survey with the locations of known galaxies in the IRAS Catalog of Extragalactic Objects and the Center for Astrophysics Catalog of Galaxies led to the…

Astrophysics · Physics 2007-05-23 Sten Odenwald , Jeffrey Newmark , George Smoot

We report on the 2.5 arcsec (400 pc) resolution CO (J = 1 -> 0) observations covering the whole length of the bar in the strongly barred late-type spiral galaxy NGC 7479. CO emission is detected only along a dust lane that traverses the…

Astrophysics · Physics 2009-10-30 S. Laine , J. D. P. Kenney , M. S. Yun , S. T. Gottesman

The Circum-Galactic Medium of MASsive Spirals (CGM-MASS) is a project studying the overall content, physical and chemical properties, and spatial distributions of the multi-phase circum-galactic medium (CGM) around a small sample of the…

Astrophysics of Galaxies · Physics 2016-10-26 Jiang-Tao Li , Joel N. Bregman , Q. Daniel Wang , Robert A. Crain , Michael E. Anderson