Results 111 to 120 of about 195,277 (271)

A Merger within a Merger: Chandra Pinpoints the Short GRB 230906A in a Peculiar Environment

The Astrophysical Journal Letters
We report the precise X-ray localization of GRB 230906A, a short-duration ( T _90  ∼ 0.9 s) gamma-ray burst (GRB) with no optical or radio counterpart.
S. Dichiara, E. Troja, B. O’Connor, Y.-H. Yang, P. Beniamini, A. Galvan-Gamez, T. Sakamoto, Y. Kawakubo, J. C. Charlton   +8 more
doaj   +1 more source

Satellite galaxies in nearby groups of galaxies

, 2015
We analyse distribution, kinematics and star-formation (SF) properties of satellite galaxies in three different samples of nearby groups. We find that studied groups are generally well approximated by low-concentration NFW model, show a variety of LOS velocity dispersion profiles and signs of SF quenching in outskirts of dwarf satellite galaxies.
Vennik, J., Hopp, U.
openaire   +2 more sources

GALAXY GROUPS: A 2MASS CATALOG [PDF]

The Astronomical Journal, 2015
Accepted for publication in Astronomical Journal. Tables 3-5 will be available with on-line publication of journal. The large Table 5 is available as 2 tables (north and south galactic hemispheres separately) at the Extragalactic Distance Database (http://edd.ifa.hawaii.edu), catalogs 2MRS1175 North/South ...
openaire   +2 more sources

Patterns of wild meat and other protein consumption in the periphery of Salonga National Park, Democratic Republic of the Congo

People and Nature, EarlyView.
Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons, Mattia Bessone, Josué Ausse Baraka, Josué Engombe Botomia, Espérance Miezi, Bénédicte Nsilu, Jonathan Nkamisha Mukole, Michel Opelele Omeno, Jean Semeki Ngabinzeke, Barbara Fruth   +9 more
wiley   +1 more source

Galaxy Assembly Bias in the Stellar-to-halo Mass Relation for Red Central Galaxies from SDSS

The Astrophysical Journal
We report evidence of galaxy assembly bias—the correlation between galaxy properties and biased secondary halo properties at fixed halo mass ( M _H )—in the stellar-to-halo mass relation for red central galaxies from the Sloan Digital Sky Survey.
Grecco A. Oyarzún, Jeremy L. Tinker, Kevin Bundy, Enia Xhakaj, J. Stuart B. Wyithe   +4 more
doaj   +1 more source

The origin of redshift asymmetries: How LambdaCDM explains anomalous redshift

, 2008
Several authors have found a statistically significant excess of galaxies with higher redshifts relative to the group centre, so-called discordant redshifts, in particular in groups where the brightest galaxy, identified in apparent magnitudes, is a ...
Arp, Arp, Bahcall, Berlind, Bottinelli, Botzler, Byrd, Croton, D'Onghia, Diaferio, Driver, Einasto, Eke, Eke, Focardi, Geller, Girardi, Goto, Goto, Hickson, Hickson, Hickson, Holmberg, Huchra, Humason, Iovino, Jaakkola, Jerjen, Jones, Karachentsev, Kim, Koester, Lucia, M. Valtonen, Mahdavi, Materne, Merchán, Moore, Niemi, Nolthenius, Ostriker, Ponman, Ramella, Ramella, Rekola, Rekola, S.-M. Niemi, Santos, Schechter, Shakhbazyan, Simien, Springel, Springel, Springel, Sulentic, Tago, Tago, Teerikorpi, Tucker, Tully, Turner, Valtonen, Yang, Zabludoff, Zaritsky   +64 more
core   +1 more source

Unveiling large-scale rotational motions in the intragroup medium at z ∼ 1 through gravitational-arc tomography★

Astronomy & Astrophysics
Context. The circumgalactic medium (CGM) is a crucial interface between galaxies and their large-scale environment, regulating gas accretion and feedback processes.
Ledoux Cédric, Muñoz-Olivares Fernanda, Barrientos L. Felipe, Tejos Nicolas, Berg Trystyn, Corro-Guerra Felipe, Johnston Evelyn, Mahler Guillaume, González-López Jorge, Hernández-Guajardo Joaquín, Noterdaeme Pasquier   +10 more
doaj   +1 more source

Human Sustainability Leadership and Employee Wellbeing (Flourishing) in Organizations

Sustainable Development, EarlyView.
ABSTRACT This qualitative case study research examines how designing for human sustainability leadership (HSL) affects employee wellbeing (flourishing) (HWBF) in organizations. It is undertaken at a university in the United Kingdom including academics and administrators.
Elli Meleti
wiley   +1 more source

Optical Observations of M81 Galaxy Group in Narrow Band [SII] and H_alpha Filters: Holmberg IX [PDF]

Serbian Astronomical Journal, 2009
We present observations of the nearby tidal dwarf galaxy Holmberg IX in M81 galaxy group in narrow band [SII] and H$alpha$ filters, carried out in March and November 2008 with the 2m RCC telescope at NAO Rozhen, Bulgaria.
Arbutina, B., Ilić, D., Stavrev, K., Urošević, D., Vukotić, B., Onić, D.   +5 more
doaj  

Fresh Activity in Old Systems: Radio AGN in Fossil Groups of Galaxies

, 2012
We present the first systematic 1.4 GHz Very Large Array radio continuum survey of fossil galaxy group candidates. These are virialized systems believed to have assembled over a gigayear in the past through the merging of galaxy group members into a ...
Bîrzan, Cisternas, Condon, Corbin, D'Onghia, David, De Robertis, Eric M. Wilcots, Jones, Kelley M. Hess, La Barbera, Mendes de Oliveira, Mendes de Oliveira, Mulchaey, Santos, Schawinski, Sun, Thomson, Tozzi, Ulmer, van Gorkom, Victoria L. Hartwick, Vikhlinin, White, Wise, Yamagata   +25 more
core   +1 more source