Results 71 to 80 of about 5,760 (217)

Interacting galaxies in the NGC 697 group of galaxies [PDF]

Proceedings of the International Astronomical Union, 2016
AbstractWe studied the morphology of two brightest members of the nearby NGC 697 group of galaxies, and found evidence of satellite accretion onto the primary galaxy NGC 697 of the group as well as outer and inner irregularities of the only early-type galaxy NGC 680 of the group, which are probably shaped by recent dry merging event(s).
openaire   +2 more sources

The Complex Multiwavelength Morphology of the Peculiar Compact Galaxy Group IC 2431

The Astrophysical Journal
We present new Chandra X-ray imaging spectroscopy of the compact galaxy group IC 2431, and compare with archival ultraviolet, optical, infrared, and radio images. IC 2431 is a starburst system containing three tidally distorted disk galaxies.
Beverly J. Smith, Roberto Soria, Douglas A. Swartz, Mark L. Giroux, Curtis Struck, Ryan Urquhart   +5 more
doaj   +1 more source

Activity of Interacting Galaxies Mkn 673: A Close-By “E+A” Galaxy [PDF]

, 1989
W. Kollatschny, K. J. Fricke
openalex   +1 more source

An Interpretable AI Framework to Disentangle Self-interacting and Cold Dark Matter in Galaxy Clusters: The CKAN Approach

The Astronomical Journal
Convolutional neural networks have shown their ability to differentiate between self-interacting dark matter (SIDM) and cold dark matter on galaxy cluster scales.
Zhenyang Huang, Haihao Shi, Zhiyong Liu, Na Wang   +3 more
doaj   +1 more source

H i, FRB, What’s Your z: The First FRB Host Galaxy Redshift from Radio Observations

The Astrophysical Journal Letters
Identification and follow-up observations of the host galaxies of fast radio bursts (FRBs) not only help us understand the environments in which the FRB progenitors reside, but also provide a unique way of probing the cosmological parameters using the ...
M. Glowacki, A. Bera, K. Lee-Waddell, A. T. Deller, T. Dial, K. Gourdji, S. Simha, M. Caleb, L. Marnoch, J. Xavier Prochaska, S. D. Ryder, R. M. Shannon, N. Tejos   +12 more
doaj   +1 more source

A Near- and Mid-Infrared Study of the Interacting Galaxy Pair UGC 12914/12915: “Taffy” [PDF]

, 1999
T. H. Jarrett, G. Hélou, D. van Buren, E. Valjavec, J. J. Condon   +4 more
openalex   +1 more source

A Galactic-scale Magnetized Wind around a Normal Star-forming Galaxy

The Astrophysical Journal Letters
Galaxy formation theory identifies superwinds as a key regulator of star formation rates, galaxy growth, and chemical enrichment. Thermal and radiation pressure are known to drive galactic-scale winds in dusty starbursting galaxies (e.g., M82), but ...
A. M. Matthews, W. D. Cotton, W. M. Peters, L. Marchetti, T. H. Jarrett, J. J. Condon, J. M. van der Hulst, M. Moloko   +7 more
doaj   +1 more source

On the Formation of Star-forming Galaxies Having Anomalously Low-metallicity Regions: The Role of Galaxy Interaction and Circumgalactic Medium/Intergalactic Medium Accretion

The Astrophysical Journal
Gas accretion from both the circumgalactic medium (CGM)/intergalactic medium (IGM) and interacting companion galaxy can dilute the gas phase metallicity of a galaxy. However, their relative contribution to the chemical evolution of galaxies remains to be
Yibo Cao, Zhizheng Pan
doaj   +1 more source

Near‐Infrared Spectroscopy of Arp Interacting Galaxies [PDF]

, 1998
L. Vanzi, A. Alonso‐Herrero, G. H. Rieke   +2 more
openalex   +1 more source

The molecular gas content throughout the low-z merger sequence

The Open Journal of Astrophysics
Exploiting IRAM 30 m CO spectroscopy, we find that SDSS post-merger galaxies display gas fractions and depletion times enhanced by 25-50\%, a mildly increased CO excitation, and standard molecular-to-atomic gas ratios, compared to non-interacting ...
Mark T. Sargent, S. L. Ellison, J. T. Mendel, A. Saintonge, D. Cs. Molnár, T. Schwandt, J. M. Scudder, G. Violino   +7 more
doaj   +1 more source