Results 111 to 120 of about 679,095 (339)

Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping

Galaxies, 2016
Previous works have shown that a dense cluster environment affects satellite galaxy properties and accelerates or truncates their evolutionary processes.
Paulina Troncoso Iribarren, Nelson Padilla, Sergio Contreras, Silvio Rodriguez, Diego García-Lambas, Claudia del P. Lagos   +5 more
doaj   +1 more source

The curious case of J113924.74+164144.0: a possible new group of galaxies at z = 0.0693

, 2010
J113924.74+164144.0 is an interesting galaxy at z = 0.0693, i.e. D_L ~ 305 Mpc, with tidal-tail-like extended optical features on both sides. There are two neighbouring galaxies, a spiral galaxy J113922.85+164136.3 which has a strikingly similar 'tidal ...
Adelman-McCarthy, Auld, Barnes, Briggs, Carilli, Catinella, Chandreyee Sengupta, Chengalur, Cortese, De Bruyn, Giovanelli, Giovanelli, Haynes, Hota, Howard, Kanekar, Kantharia, Lah, Lah, Lang, N. G. Kantharia, Nirupam Roy, Rots, Sengupta, Verheijen, Verheijen, York, York, Zwaan, Zwaan, Zwaan   +30 more
core   +1 more source

Starburst Galaxies

, 2020
Written for an ERASMUS textbook editted by P. Kabath, D.
openaire   +2 more sources

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

Detecting Intermediate-Mass Black Holes out to 20 Mpc with ELT/HARMONI: The Case of FCC 119

Universe
Intermediate-mass black holes (IMBHs; MBH≈103–5 M⊙) play a critical role in understanding the formation of supermassive black holes in the early universe.
Hai N. Ngo, Dieu D. Nguyen, Tinh T. Q. Le, Tien H. T. Ho, Truong N. Nguyen, Trung H. Dang   +5 more
doaj   +1 more source

Towards an understanding of third-order galaxy-galaxy lensing

, 2012
Third-order galaxy-galaxy lensing (G3L) is a next generation galaxy-galaxy lensing technique that either measures the excess shear about lens pairs or the excess shear-shear correlations about lenses.
Bartelmann, Bartelmann, Bower, Brainerd, Cooray, D. Kübler, De Lucia, Fischer, Griffiths, Guzik, Hoekstra, Hoekstra, Johnston, Kaiser, Kleinheinrich, Mandelbaum, Mandelbaum, Mandelbaum, P. Schneider, P. Simon, Parker, Pen, Scherrer, Schneider, Schrabback, Seljak, Sheldon, Simon, Simon, Tyson, van Uitert, Weinberg   +31 more
core   +1 more source

The EAGLE simulations of galaxy formation: calibration of subgrid physics and model variations [PDF]

, 2015
We present results from thirteen cosmological simulations that explore the parameter space of the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) simulation project.
R. Crain, J. Schaye, R. Bower, M. Furlong, M. Schaller, T. Theuns, C. D. Vecchia, C. Frenk, I. McCarthy, J. Helly, A. Jenkins, Y. Rosas-Guevara, S. White, J. Trayford   +13 more
semanticscholar   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source

Photometry and Classification of Stars in the Direction of Clusters NGC 7129 and NGC 7142 in Cepheus. I. Magnitudes, Color Indices and Spectral Types of 2140 Stars

Open Astronomy, 2012
In a 1.5 square degree area, centered at RA = 21:44:30, DEC = +65:58, we have determined magnitudes and color indices for 2140 stars in the Vilnius seven-color system down to V = 17 mag.
Maskoliūnas M., Zdanavičius J., Zdanavičius K., Straižys V.   +3 more
doaj   +1 more source

Testing redMaPPer centring probabilities using galaxy clustering and galaxy–galaxy lensing [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Galaxy cluster centring is a key issue for precision cosmology studies using galaxy surveys. Mis-identification of central galaxies causes systematics in various studies such as cluster lensing, satellite kinematics, and galaxy clustering. The red-sequence Matched-filter Probabilistic Percolation (redMaPPer) estimates the probability that each member ...
Chiaki Hikage, Rachel Mandelbaum, Alexie Leauthaud, Eduardo Rozo, Eli S Rykoff   +4 more
openaire   +2 more sources