Results 101 to 110 of about 1,488 (191)

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. [PDF]

Nature, 2023
Koelemay LA, Gold KR, Ziurys LM.
europepmc   +1 more source

Galactic gamma bays and the origin of cosmic rays [PDF]

, 1977
The question of the origin of the cosmic radiation is a fundamental problem in high energy astro physics, this thesis is concerned with one particular aspect of this question namely, whether or not the cosmic ray sources are Galactic or Extragalactic ...
Dodds, D.
core  

Traversing the Star-forming Main Sequence with Molecular Gas Stacks of z ∼ 1.6 Cluster Galaxies

The Astrophysical Journal
The cluster environment has been shown to affect the molecular gas content of cluster members, yet a complete understanding of this often subtle effect has been hindered due to a lack of detections over the full parameter space of galaxy star formation ...
Alex Pigarelli, Allison Noble, Gregory Rudnick, William Cramer, Stacey Alberts, Yannick Bahe, Patrick S. Kamieneski, Sebastian Montaño, Adam Muzzin, Julie Nantais, Sarah Saavedra, Eelco van Kampen, Tracy Webb, Christina C. Williams, Gillian Wilson, H. K. C. Yee   +15 more
doaj   +1 more source

Evidence for a Shallow Evolution in the Volume Densities of Massive Galaxies at z = 4–8 from CEERS

The Astronomical Journal
We analyze the evolution of massive (log _10 [ M _⋆ / M _⊙ ] > 10) galaxies at z ∼ 1–4 selected from JWST Cosmic Evolution Early Release Survey (CEERS). We infer the physical properties of all galaxies in the CEERS NIRCam imaging through spectral energy ...
Katherine Chworowsky, Steven L. Finkelstein, Michael Boylan-Kolchin, Elizabeth J. McGrath, Kartheik G. Iyer, Casey Papovich, Mark Dickinson, Anthony J. Taylor, L. Y. Aaron Yung, Pablo Arrabal Haro, Micaela B. Bagley, Bren E. Backhaus, Rachana Bhatawdekar, Yingjie Cheng, Nikko J. Cleri, Justin W. Cole, M. C. Cooper, Luca Costantin, Avishai Dekel, Maximilien Franco, Seiji Fujimoto, Christopher C. Hayward, Benne W. Holwerda, Marc Huertas-Company, Michaela Hirschmann, Taylor A. Hutchison, Anton M. Koekemoer, Rebecca L. Larson, Zhaozhou Li, Arianna S. Long, Ray A. Lucas, Nor Pirzkal, Giulia Rodighiero, Rachel S. Somerville, Brittany N. Vanderhoof, Alexander de la Vega, Stephen M. Wilkins, Guang Yang, Jorge A. Zavala   +38 more
doaj   +1 more source

Outlook for ultraviolet astronomy

, 1981
A brief overview of galactic and extragalactic research is given with emphasis on the problems of temperature determination, chemical abundance determination, and the question about the energy sources for the high temperature regions.
Boehm-Vitense, E.
core  

The All-sky Impact of the LMC on the Milky Way Circumgalactic Medium

The Astrophysical Journal
The first infall of the LMC into the Milky Way (MW) represents a large and recent disruption to the MW circumgalactic medium (CGM). In this work, we use idealized, hydrodynamical simulations of an MW-like CGM embedded in a dark matter halo with an ...
Christopher Carr, Greg L. Bryan, Nicolás Garavito-Camargo, Gurtina Besla, David J. Setton, Kathryn V. Johnston, Kung-Yi Su   +6 more
doaj   +1 more source

Galáxias post-starburst no universo local [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014Galáxias post-starburst (PSB) apresentam espectros com fortes linhas de absorção na série ...
Werle, Ariel
core  

Resolving the Multiphase Outflow, Shock Signatures, and PAHs in the AGN-starburst Composite ULIRG F10565+2448 with JWST MIRI/MRS

The Astrophysical Journal
We present new James Webb Space Telescope Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy F10565+2448.
Kylie Yui Dan, Jerome Seebeck, Sylvain Veilleux, David Rupke, Eduardo Gonzalez-Alfonso, Ismael Garcia-Bernete, Weizhe Liu, Dieter Lutz, Marcio Melendez, Miguel Pereira Santaella, Eckhard Sturm, Francesco Tombesi   +11 more
doaj   +1 more source

VHE gamma-rays as tracers of nonthermal galactic and extragalactic sources

, 1996
There are sound reasons to believe that the next generation of ground-based #gamma#-ray detectors with an energy threshold around 100 GeV will raise the status of VHE #gamma#-ray astronomy to the level which is currently achieved at GeV energies by the ...
Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany), Aharonian, F.A.   +1 more
core  

The nature and origin of disky elliptical galaxies [PDF]

, 2002
The observational trend that disky elliptical galaxies exhibit younger luminosity- weighted ages than boxy ellipticals is investigated. The presence of a possible young stellar disk embedded in these galaxies is explored by comparing kinematics derived ...
McDermid, Richard Morgan
core