English
Related papers

Related papers: X-rays from Green Pea Analogs

200 papers

We explore constraints on the joint photometric and morphological evolution of typical low redshift galaxies as they move from the blue cloud through the green valley and onto the red sequence. We select GAMA survey galaxies with…

Properties of hot gas outflows from galaxies are generally measured from associated X-ray line emission assuming that it represents atomic transitions in thermally excited hot gas. X-ray line emission, however, can also arise from the…

Astrophysics of Galaxies · Physics 2015-06-03 Jiren Liu , Q. Daniel Wang , Shude Mao

We present X-ray, infrared, optical and radio observations of four previously unidentified Galactic plane X-ray sources, AX J163252-4746, AX J184738-0156, AX J144701-5919 and AX J144547-5931. Detection of each source with the Chandra X-ray…

We examine how the total X-ray luminosity correlates with stellar mass, stellar population, and redshift for a K-band limited sample of ~3500 galaxies at 0.5<z<2.0 from the NEWFIRM Medium Band Survey in the COSMOS field. The galaxy sample…

We report the results of a deep Chandra survey of the Sculptor dwarf spheroidal galaxy. We find five X-ray sources with L_X of at least 6*10^33 ergs/sec with optical counterparts establishing them as members of Sculptor. These X-ray…

We present a spectroscopic study of metal-deficient dwarf galaxy candidates, selected from the SDSS DR12. The oxygen abundances were derived using the direct method in galaxies with the electron temperature-sensitive emission line…

Astrophysics of Galaxies · Physics 2023-05-03 N. G. Guseva , Y. I. Izotov , K. J. Fricke , C. Henkel

This paper presents the X-ray properties of a flux- and volume-limited complete sample of 16 Giga-Hertz Peaked Spectrum (GPS) galaxies. This study addresses three basic questions in our understanding of the nature and evolution of GPS…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Olof Tengstrand , M. Guainazzi , A. Siemiginowska , N. Fonseca Bonilla , A. Labiano , D. M. Worrall , P. Grandi , E. Piconcelli

We assemble a catalog of 15424 nearby galaxies within 50 Mpc with consistent and homogenized mass, distance, and morphological type measurements. Our catalog combines galaxies from HyperLeda, the NASA-Sloan Atlas, and the Catalog of Local…

Astrophysics of Galaxies · Physics 2023-09-13 D. Ohlson , A. C. Seth , E. Gallo , V. F. Baldassare , J. E. Greene

X-ray luminosity, temperature, gas mass, total mass, and their scaling relations are derived for 94 early-type galaxies using archival $Chandra$ X-ray Observatory observations. Consistent with earlier studies, the scaling relations, $L_X…

Astrophysics of Galaxies · Physics 2018-04-25 Iu. V. Babyk , B. R. McNamara , P. E. J. Nulsen , M. T. Hogan , A. N. Vantyghem , H. R. Russell , F. A. Pulido , A. C. Edge

Extremely metal-poor galaxies (XMPGs) at relatively low redshift are excellent laboratories for studying galaxy formation and evolution in the early universe. Much effort has been spent on identifying them from large-scale spectroscopic…

X-ray flares have routinely been observed from the supermassive black hole, Sagittarius A$^\star$ (Sgr A$^\star$), at our Galactic center. The nature of these flares remains largely unclear, despite of many theoretical models. In this…

High Energy Astrophysical Phenomena · Physics 2015-09-16 Ya-Ping Li , Feng Yuan , Qiang Yuan , Q. Daniel Wang , P. F. Chen , Joseph Neilsen , Taotao Fang , Shuo Zhang , Jason Dexter

We use VANDELS spectroscopic data overlapping with the $\simeq$7 Ms Chandra Deep Field South survey to extend studies of high-mass X-ray binary systems (XRBs) in 301 normal star-forming galaxies in the redshift range $3 < z < 5.5$. Our…

We present followup optical g', r', and i', imaging and spectroscopy of serendipitous X-ray sources detected in 6 archival Chandra, images included in the Chandra, Multiwavelength Project (ChaMP). Of the 486 X-ray sources detected between…

We present the first broadband X-ray observations of four Giga-Hertz Peaked Spectrum (GPS) radio galaxies at redshift <~1 performed by Chandra and XMM-Newton. These observations more than double the number of members of this class with…

Astrophysics · Physics 2009-11-11 M. Guainazzi , A. Siemiginowska , C. Stanghellini , P. Grandi , E. Piconcelli , C. Azibuke

We spectroscopically analyzed a sample of 85 Sloan Digital Sky Survey compact, oxygen-dominated galaxies located at redshift $z\sim0.001-0.350$, selected because of their large equivalent width of [O III]$\lambda$5007 (larger than 200\AA).…

Astrophysics of Galaxies · Physics 2023-07-28 B. E. Miranda-Pérez , A. M. Hidalgo-Gámez

We show that the observed relationship between the fraction of low-mass X-ray binaries (LMXBs) found in globular clusters (GCs) and the GC-specific frequency for early-type galaxies is consistent with an LMXB formation model in which the…

Astrophysics · Physics 2009-11-10 Adrienne M. Juett

We report the detection of CO(1-0) line emission in the bright, lensed star-forming galaxies SPT-S 233227-5358.5 (z=2.73) and SPT-S 053816-5030.8 (z=2.78), using the Australia Telescope Compact Array (ATCA). Both galaxies were discovered in…

We present a multi-wavelength study of RX J0848+4456, a cluster of galaxies discovered through X-ray emission in the ROSAT Deep Cluster Survey. Our observations consist of WFPC2 imaging, optical spectra, and X-ray data collected with the…

The relation between X-ray luminosity and near-infrared luminosity for early-type galaxies has been examined. Near-infrared (NIR) luminosities should provide a superior measure of stellar mass compared to optical luminosities used in…

Astrophysics · Physics 2009-11-11 S. C. Ellis , Ewan O'Sullivan

X-ray appearance of normal galaxies is mainly determined by X-ray binaries powered by accretion onto a neutron star or a stellar mass black hole. Their populations scale with the star-formation rate and stellar mass of the host galaxy and…

High Energy Astrophysical Phenomena · Physics 2023-04-28 Marat Gilfanov , Giuseppina Fabbiano , Bret Lehmer , Andreas Zezas
‹ Prev 1 8 9 10 Next ›