Results 61 to 70 of about 2,162,294 (370)
S8 Tension in the Context of Dark Matter–Baryon Scattering
The Astrophysical Journal Letters, 2023 We explore an interacting dark matter (IDM) model that allows for a fraction of dark matter (DM) to undergo velocity-independent scattering with baryons. In this scenario, structure on small scales is suppressed relative to the cold DM scenario.
Adam He +3 more
doaj +1 more source
WITNESSING THE KEY EARLY PHASE OF QUASAR EVOLUTION: AN OBSCURED ACTIVE GALACTIC NUCLEUS PAIR IN THE INTERACTING GALAXY IRAS 20210+1121 [PDF]
, 2010 We report the discovery of an active galactic nucleus (AGN) pair in the interacting galaxy system IRAS 20210+1121 at z = 0.056. An XMM-Newton observation reveals the presence of an obscured (NH ∼ 5 × 1023 cm−2), Seyfert-like (L2–10 keV = 4.7 × 1042 erg s−
E. Piconcelli +8 more
semanticscholar +1 more source
Gas-Rich Companions of Isolated Galaxies [PDF]
, 1999 We have used the VLA to search for gaseous remnants of the galaxy formation process around six extremely isolated galaxies. We found two distinct HI clouds around each of two galaxies in our sample (UGC 9762 & UGC 11124).
Byrd G. G. +6 more
core +4 more sources
Bar-spheroid interaction in galaxies
The Astrophysical Journal, 1992 The secular evolution of barred galaxies is explored using N-body simulation and linear analysis. In particular, we examine the interaction between bars and spheroidal components of galaxies. According to our calculations, this interaction drives secular transfer of angular momentum from bars to spheroids, primarily through resonant coupling.
Hernquist, Lars, Weinberg, Martin D.
openaire +2 more sources
Kinematics and dynamics of the M51-type galaxy pair NGC 3893/96 (KPG 302) [PDF]
, 2007 We study the kinematics and dynamics of the M51-type interacting galaxy pair KPG 302 (NGC 3893/96). We analyse the distribution of the dark matter (DM) halo of the main galaxy in order to explore possible differences between DM halos of "isolated ...
Amram, Philippe +4 more
core +4 more sources
THE BURIED STARBURST IN THE INTERACTING GALAXY II Zw 096 AS REVEALED BY THE SPITZER SPACE TELESCOPE [PDF]
, 2010 An analysis of data from the Spitzer Space Telescope, Hubble Space Telescope, Chandra X-ray Observatory, and AKARI Infrared Astronomy Satellite is presented for the z = 0.036 merging galaxy system II Zw 096 (CGCG 448-020).
H. Inami +36 more
semanticscholar +1 more source
, 2007 Using data from the DEEP2 Galaxy Redshift Survey and HST/ACS imaging in the Extended Groth Strip, we select nearly 100 interacting galaxy systems including kinematic close pairs and morphologically identified merging galaxies.
Chiueh, Tzihong +15 more
core +1 more source
THE HOT INTERSTELLAR MEDIUM OF THE INTERACTING GALAXY NGC 4490 [PDF]
, 2010 We present an analysis of the hot interstellar medium (ISM) in the spiral galaxy NGC 4490, which is interacting with the irregular galaxy NGC 4485, using ∼100 ks of Chandra ACIS-S observations.
A. J. Richings +3 more
semanticscholar +1 more source
Isolated Galaxies versus Interacting Pairs with MaNGA
, 2015 We present preliminary results of the spectral analysis on the radial distributions of the star formation history in both, a galaxy merger and a spiral isolated galaxy observed with MaNGA.
Argudo-Fernández, M. +5 more
core +2 more sources
POWERFUL H2 EMISSION AND STAR FORMATION ON THE INTERACTING GALAXY SYSTEM Arp 143: OBSERVATIONS WITH SPITZER AND GALEX [PDF]
, 2008 We present new mid-infrared (IR; 5–35 μm) and ultraviolet (1539–2316 Å) observations of the interacting galaxy system Arp 143 (NGC 2444/2445) from the Spitzer Space Telescope and Galaxy Evolution Explorer.
P. Beirão +5 more
semanticscholar +1 more source