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相关论文: A New, Deep JVLA Radio Survey of M33

200 篇论文

The Local Group compact elliptical galaxy M32 hosts one of the nearest candidate super-massive black holes (SMBHs), which has a previously suggested X-ray counterpart. Based on sensitive observations taken with the {\it Karl G. Jansky} Very…

星系天体物理 · 物理学 2016-08-07 Yang Yang , Zhiyuan Li , Loránt O. Sjouwerman , Q. Daniel Wang , Qiusheng Gu , Ralph P. Kraft , Feng Yuan

From a combination of MERLIN (Multi-Element Radio-Linked Interferometer Network) and global VLBI (Very Long Baseline Interferometry) observations of the starburst galaxy M82, images of 36 discrete sources at resolutions ranging from ~3 to…

宇宙学与河外天体物理 · 物理学 2015-05-19 D. Fenech , R. Beswick , T. W. B. Muxlow , A. Pedlar , M. K. Argo

Modern radio telescopes are routinely reaching depths where normal starforming galaxies are the dominant observed population. Realising the potential of radio as a tracer of star formation and black hole activity over cosmic time involves…

星系天体物理 · 物理学 2020-07-01 I. Heywood , C. L. Hale , M. J. Jarvis , S. Makhathini , J. A. Peters , M. L. L. Sebokolodi , O. M. Smirnov

We have obtained a series of deep X-ray images of the nearby galaxy M83 using Chandra, with a total exposure of 729 ks. Combining the new data with earlier archival observations totaling 61 ks, we find 378 point sources within the D25…

We have carried out a study of the X-ray properties of the supernova remnant (SNR) population in M33 with XMM-Newton, comprising deep observations of 8 fields in M33 covering all of the area within the D$_{25}$ contours, and with a typical…

We present observations with the Karl G. Jansky Very Large Array (VLA) at 3 GHz toward a sub-field of the XXL-North 25 deg$^{2}$ field targeting the first supercluster discovered in the XXL Survey. The structure has been found at a…

We present the analysis of supernova remnants (SNRs) and candidates in M31 identified in the XMM-Newton large programme survey of M31. SNRs are among the bright X-ray sources in a galaxy. They are good indicators of recent star formation…

We present the first spatially-resolved infrared images of supernova remnants (SNRs) in M33 with the unprecedented sensitivity and resolution of JWST. We analyze 40 SNRs in four JWST fields: two covering central and southern M33 with…

We report on the first near-IR [Fe II] line imaging survey of extragalactic SNRs. Observations of a sample of 42 objects drawn from an optically-selected catalogue of SNRs in M33 provide evidence for a wide range in the [Fe II] 1.644…

天体物理学 · 物理学 2016-08-30 T. Morel , R. Doyon , N. St-Louis

We describe an observational program aimed at understanding the radio emission from distant, rapidly evolving galaxy populations. These observations were carried out at 1.4 and 8.5 GHz with the VLA centered on the Hubble Deep Field,…

天体物理学 · 物理学 2009-10-31 E. A. Richards

Using the JVLA, we explored the Galactic center (GC) with a resolution of 0.05" at 33.0 and 44.6 GHz. We detected 64 hyper-compact radio sources (HCRs) in the central parsec. The dense group of HCRs can be divided into three spectral types:…

星系天体物理 · 物理学 2022-03-09 Jun-Hui Zhao , Mark R. Morris , W. M. Goss

We present the first detection of 24 {\mu}m variability in 24 sources in the Local Group galaxy M33. These results are based on 4 epochs of MIPS observations, which are irregularly spaced over ~750 days. We find that these sources are…

太阳与恒星天体物理 · 物理学 2015-06-23 Edward J. Montiel , Sundar Srinivasan , Geoffrey C. Clayton , Charles W. Engelbracht , Christopher B. Johnson

We present optical, radio and X-ray data that confirm a new supernova remnant (SNR) in the Large Magellanic Cloud (LMC) discovered using our deep H-alpha imagery. Optically, the new SNR has a somewhat filamentary morphology and a diameter…

星系天体物理 · 物理学 2016-03-08 Warren A. Reid , Milorad Stupar , Luke M. Bozzetto , Quentin A. Parker , Miroslav D. Filipovic

The remnant phase of a radio galaxy is characterized by the cessation of AGN activity resulting in the stoppage of jets supplying plasma to radio lobes. In this paper, we present the search and characterization of remnant candidates in 12.5…

星系天体物理 · 物理学 2023-02-24 Sushant Dutta , Veeresh Singh , C. H. Ishwara Chandra , Yogesh Wadadekar , Abhijit Kayal , Ian Heywood

The nearby galaxy M33 hosts the most luminous steady X-ray source in the Local Group. The high spatial resolution of Chandra allows us to confirm that this ultra-luminous X-ray source is within the nucleus and rule out at the 4.6 sigma…

天体物理学 · 物理学 2009-11-07 Guillaume Dubus , Robert E. Rutledge

We report multifrequency observations with the NRAO Very Long Baseline Array (VLBA) of the compact radio sources J0128+6306 and J0547+2721, which are viewed through the supernova remnants G127.1+0.5 and S147, respectively. Observations were…

天体物理学 · 物理学 2009-11-13 Laura G. Spitler , Steven R. Spangler

Context. The modern generation of Cherenkov telescopes has revealed a new population of gamma-ray sources in the Galaxy. Some of them have been identified with previously known X-ray binary systems while other remain without clear…

天体物理学 · 物理学 2009-11-13 Josep Marti , Josep M. Paredes , Ishwara Chandra C. H. , Valenti Bosch-Ramon

We present high resolution (arcsecond or better) observations made with the Karl G. Jansky Very Large Array of 123 radio-loud quasars with redshifts in the range $2.5 \leq z \leq 5.28$ that form a complete flux limited sample ($\geq 70$ mJy…

星系天体物理 · 物理学 2014-06-19 Doug B. Gobeille , John F. C. Wardle , C. C. Cheung

We report one OH 1665-MHz detection in new observations with the NSF's Karl G. Jansky Very Large Array. To the authors' knowledge, this is the first OH maser detection in M33. The source occurs at a position of $\alpha=23.50069(9)^{\circ}$…

星系天体物理 · 物理学 2018-02-01 Eric Koch , Erik Rosolowsky , Megan C. Johnson , Amanda A. Kepley , Adam Leroy

The GLOSTAR survey studies star formation with the VLA and the Effelsberg 100m telescope in the Galactic plane (-2d<l<60d; |b|<1d) and the Cygnus X region with unprecedented sensitivity in both flux density (~50uJy/beam) and the capability…