English
Related papers

Related papers: A Multi-Frequency Study of the Milky Way-like Spir…

200 papers

NGC 6744 is the nearest and brightest south-hemisphere galaxy with a morphological type similar to that of the Milky Way. Using data obtained with the Integral Field Unit of the Gemini South Multi-Object Spectrograph, we found that this…

Astrophysics of Galaxies · Physics 2018-07-10 Patrícia da Silva , J. E. Steiner , R. B. Menezes

We present 115 compact radio point sources in three galaxies, NGC 5474, NGC 4631 and M51, taken in the most extended (A-)configuration of the Karl G. Jansky Very Large Array at 10GHz. Several of these compact radio point sources have…

NGC 4736 is a nearby Sab spiral galaxy, hosting one of the closest examples of a LINER nucleus. We have utilized recent observations by ROSAT and ASCA to characterise the X-ray properties of this galaxy. Twelve discrete X-ray sources are…

Astrophysics · Physics 2009-10-31 T. P. Roberts , R. S. Warwick , T. Ohashi

We report the Chandra detection of X-ray emission spatially coincident with the kpc-scale radio bubbles in the nearby (D_L ~ 31 Mpc) AGN-starburst galaxy NGC 6764. The X-ray emission originates in hot gas (kT ~ 0.75 keV), which may either…

Astrophysics · Physics 2009-11-13 J. H. Croston , M. J. Hardcastle , P. Kharb , R. P. Kraft , A. Hota

We present first results of near-infrared integral field spectroscopy of the central 8''$\times$8'' of the Wolf-Rayet nucleus of the barred spiral galaxy NGC 6764. In addition to stellar CO and Na I absorption lines as well as recombination…

Astrophysics · Physics 2007-05-23 A. Eckart , E. Schinnerer

The face-on spiral galaxy M74 (NGC 628) was observed by XMM on 2002 February 2. In total, 21 sources are found in the inner 5' from the nucleus (after rejection of a few sources associated to foreground stars). Hardness ratios suggest that…

Astrophysics · Physics 2009-11-07 Roberto Soria , Albert K. H. Kong

We report the analysis of deep radio observations of the interacting galaxy system M51 from the Very Large Array, with the goal of understanding the nature of the population of compact radio sources in nearby spiral galaxies. We detect 107…

Astrophysics · Physics 2008-11-26 L. A. Maddox , J. J. Cowan , R. E. Kilgard , E. Schinnerer , C. J. Stockdale

The existence of binary supermassive black holes (SBHs) is predicted by models of hierarchical galaxy formation. To date, only a single binary SBH has been imaged, at a projected separation of 7.3 parsecs. Here we report the detection of a…

Astrophysics of Galaxies · Physics 2017-09-26 Preeti Kharb , Dharam Vir Lal , David Merritt

The full stellar population of NGC 6334, one of the most spectacular regions of massive star formation in the nearby Galaxy, have not been well-sampled in past studies. We analyze here a mosaic of two Chandra X-ray Observatory images of the…

Astrophysics of Galaxies · Physics 2015-05-13 Eric D. Feigelson , Amanda L. Martin , Collin J. McNeill , Patrick S. Broos , Gordon P. Garmire

NGC 6240 is a luminous infrared galaxy that, based on recent MERLIN and CHANDRA observations, appears to host a pair of active galactic nuclei. We present new, multiepoch and multifrequency radio observations of NGC 6240 obtained using the…

Astrophysics · Physics 2009-11-10 Jack F. Gallimore , Robert Beswick

We have previously presented the results of a 325 MHz radio survey of M31, conducted with the A-configuration of the Very Large Array. In this survey, a total of 405 radio sources between <6" and 170" in extent were mapped with a resolution…

Astrophysics · Physics 2009-11-11 Joseph D. Gelfand , T. J. W. Lazio , B. M. Gaensler

XMM-Newton EPIC observations reveal the population of X-ray sources of the bright Local Group spiral galaxy M 31, a low-star-formation-rate galaxy like the Milky Way, down to a 0.2-4.5 keV luminosity of 4.4E34 erg/s. With the help of X-ray…

Astrophysics · Physics 2007-05-23 W. Pietsch

We analyse high spatial resolution near infra-red (NIR) imaging of NGC6384, a Milky Way like galaxy, using ARGOS commissioning data at the Large Binocular Telescope (LBT). ARGOS provides a stable PSF$_{\rm FWHM}\!=\!0.2"\!-\!0.3"$ AO…

We present the first sub-arcsecond radio observations of the nearby dwarf starburst galaxy NGC 3077 obtained with the MERLIN interferometer. We have detected two resolved sources which are coincident with the positions of two discrete X-ray…

Astrophysics · Physics 2009-11-13 Daniel Rosa-Gonzalez

We present the results of deep, high-resolution, 5 GHz Expanded Very Large Array (EVLA) observations of the nearby, dwarf lenticular galaxy and intermediate mass black hole candidate (M ~4.5 x 10^5 M_sun), NGC 404. For the first time, radio…

Astrophysics of Galaxies · Physics 2015-06-04 Kristina Nyland , Josh Marvil , Joan Wrobel , Lisa Young , B. Ashley Zauderer

We present multifrequency radio continuum as well as HI observations of the superwind galaxy NGC1482, with both the GMRT and the VLA. This galaxy has a remarkable hourglass-shaped optical emission line outflow as well as bi-polar soft X-ray…

Astrophysics · Physics 2009-11-10 Ananda Hota , D. J. Saikia

We present a multi-wavelength study of embedded massive clusters in the nearby (3.9 Mpc) starburst galaxy NGC 4449 in an effort to uncover the earliest phases of massive cluster evolution. By combining high resolution imaging from the radio…

Astrophysics · Physics 2009-11-13 Amy E. Reines , Kelsey E. Johnson , W. M. Goss

Wide-field VLBI observations of the nearby starburst galaxy NGC 4945, obtained with the Australian LBA, have produced 2.3 GHz images over two epochs with a maximum spatial resolution of 0.3 pc. 15 sources were detected, 13 of which…

Astrophysics · Physics 2015-05-13 E. Lenc , S. J. Tingay

We present the results of Chandra observations of off-nuclear X-ray sources in the spiral galaxy M51 (NGC 5194). 113 X-ray sources have been detected in the field of view and 84 among them project within the disk of NGC 5194. Six and twenty…

Astrophysics · Physics 2007-05-23 Yuichi Terashima , Andrew S. Wilson

We survey four nearby irregular galaxies for radio supernova remnants (SNRs) using deep (1 sigma ~ 20 microJy), high resolution (~20 pc) VLA continuum data at 20, 6, and 3.6 cm. We identify discrete sources in these galaxies and use radio…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 Laura Chomiuk , Eric Wilcots
‹ Prev 1 2 3 10 Next ›