Results 121 to 130 of about 12,959,376 (400)
A Massive Quiescent Galaxy in a Group Environment at z = 4.53
The Astrophysical JournalWe report on the spectroscopic confirmation of a massive quiescent galaxy at z _spec = 4.53 in the COSMOS field. The object was first identified as a galaxy with suppressed star formation at z _phot ∼ 4.65 from the COSMOS2020 catalog.
Takumi Kakimoto +12 more
doaj +1 more source
DISCRETE X-RAY SOURCES IN GALAXY CLUSTERS
Odessa Astronomical Publications, 2020 Current studies of extragalactic X-ray sources using data from orbital observatory XMM- Newton are at the front line of X-ray astronomy. Resolution capacity of the observatory instruments enable to detect separate X-ray sources in the close galaxies.
A. V. Tugay +2 more
doaj +1 more source
Discovery of a giant HI tail in the galaxy group HCG 44 [PDF]
, 2012 We report the discovery of a giant HI tail in the intragroup medium of HCG 44 as part of the ATLAS3D survey. The tail is ˜ 300 kpc long in projection and contains ˜ 5 × 108 M⊙ of HI. We detect no diffuse stellar light at the location of the tail down to ˜
P. Serra +27 more
semanticscholar +1 more source
Annalen der Physik, EarlyView.The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley +1 more source
The Astronomical Journal, 2023 To better understand the formation of large, low-surface-brightness galaxies, we measure the correlation function between ultradiffuse galaxy (UDG) candidates and Milky Way analogs (MWAs).
Hina Goto +4 more
doaj +1 more source
The Arecibo Galaxy Environment Survey VIII : Discovery of an Isolated Dwarf Galaxy in the Local Volume [PDF]
, 2014 The Arecibo Galaxy Environment Survey (AGES) has detected a nearby HI source at a heliocentric velocity of +363 km/s . The object was detected through its neutral hydrogen emission and has an obvious possible optical counterpart in Sloan Digital Sky ...
Herbst, H. +3 more
core +1 more source
The Leo-I group: new dwarf galaxy and ultra diffuse galaxy candidates [PDF]
Astronomy & Astrophysics, 2018 Context. The study of dwarf galaxies and their environments provides crucial test beds for predictions of cosmological models and insights into the structure formation on small cosmological scales. In recent years, many problems on the scale of groups of
O. Müller, H. Jerjen, B. Binggeli
semanticscholar +1 more source
Journal of Applied Polymer Science, EarlyView.A synergistic flame retardant containing melamine polyphosphate and zinc borate was prepared and applied to provide rLLDPE/CaCO3 composites with superior flame retardancy. ABSTRACT The use of recycled thermoplastics is crucial for addressing environmental challenges such as waste management and sustainability.
Antonio Benjamim Mapossa +2 more
wiley +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 +64 more
core +1 more source
The baryon budget on the galaxy group/cluster boundary [PDF]
, 2012 We present a study of the hot gas and stellar content of five optically selected poor galaxy clusters, including a full accounting of the contribution from intracluster light (ICL) and a combined hot gas and hydrostatic X-ray mass analysis with XMM ...
A. Sanderson +8 more
semanticscholar +1 more source