Results 71 to 80 of about 1,488 (191)

The physical processes and observing techniques of radio astronomy: an introduction

, 2020
This is a textbook for undergraduate courses on radio astronomy. Written by an active professor and researcher in the field, it begins by explaining why conducting observations at radio frequencies is so important, then reviews essential physics concepts
Pannuti, Thomas G
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JWST Discovery of a Very Fast Biconical Outflow of Warm Molecular Gas in the Nearby Ultraluminous Infrared Galaxy F08572+3915 NW

The Astrophysical Journal
We present new James Webb Space Telescope (JWST) Mid-Infrared Instrument Medium-Resolution Spectrometer observations of the nearby ultraluminous infrared galaxy (ULIRG) F08572+3915 NW. These integral field spectroscopic (IFS) data reveal a kpc-scale warm-
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
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Cosmic Rays in Galactic and Extragalactic Magnetic Fields

, 2011
We briefly review sources of cosmic rays, their composition and spectra as well as their propagation in the galactic and extragalactic magnetic fields, both regular and fluctuating. A special attention is paid to the recent results of the X-ray and gamma-
Ptuskin, Vladimir, Watson, Alan, Aharonian, Felix, Aharonian, F., Parizot, E., Ptuskin, V., Watson, A., Felix Aharonian, Etienne Parizot, Bykov, Andrei, Bykov, A., Alan Watson, Vladimir Ptuskin, Andrei Bykov   +13 more
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Investigation of some galactic and extragalactic gravitational phenomena

, 2012
Here we present a short overview of the most important results of our investigations of the following galactic and extragalactic gravitational phenomena: supermassive black holes in centers of galaxies and quasars, supermassive black hole ...
P. Jovanovic, Jovanović P.
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The Extragalactic Origin of the Arcturus Group [PDF]

, 2003
: We reanalyze the group of stars associated kinematically with Arcturus (Eggen 1971), and confirm that they constitute a peculiar grouping of metal-poor stars with similar apocentric radius, common angular momentum, and distinct metal abundance patterns.
Freeman, K. C., Navarro, J. F., Helmi, A, Freeman, KC, Navarro, JF, Helmi, A.   +5 more
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X-Raying CAMELS: Constraining Baryonic Feedback in the Circumgalactic Medium with the CAMELS Simulations and eRASS X-Ray Observations

The Astrophysical Journal
The circumgalactic medium (CGM) around massive galaxies plays a crucial role in regulating star formation and feedback. Using the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) suite, we develop emulators for the X-ray surface ...
Erwin T. Lau, Daisuke Nagai, Ákos Bogdán, Isabel Medlock, Benjamin D. Oppenheimer, Nicholas Battaglia, Daniel Anglés-Alcázar, Shy Genel, Yueying Ni, Francisco Villaescusa-Navarro   +9 more
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The Era of Kilometer-Scale Neutrino Detectors

Advances in High Energy Physics, 2013
Neutrino astronomy beyond the Sun was first imagined in the late 1950s; by the 1970s, it was realized that kilometer-scale neutrino detectors were required.
Francis Halzen, Uli Katz
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Measuring the Intracluster Light Fraction with Machine Learning

The Astrophysical Journal
The intracluster light (ICL) is an important tracer of a galaxy cluster’s history and past interactions. However, only small samples have been studied to date due to its very low surface brightness and the heavy manual involvement required for the ...
Louisa Canepa, Sarah Brough, Francois Lanusse, Mireia Montes, Nina Hatch   +4 more
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Strong LensIng and Cluster Evolution (SLICE) with JWST: Early Results, Lens Models, and High-redshift Detections

The Astrophysical Journal
We leverage JWST’s superb resolution to derive strong-lensing mass maps of 14 clusters, spanning a redshift range of z  ∼ 0.25–1.06 and a mass range of M _500  ∼ 2–12 × 10 ^14 M _⊙ , from the Strong LensIng and Cluster Evolution (SLICE) JWST program ...
Catherine Cerny, Guillaume Mahler, Keren Sharon, Mathilde Jauzac, Gourav Khullar, Benjamin Beauchesne, Jose M. Diego, David J. Lagattuta, Marceau Limousin, Nency R. Patel, Johan Richard, Carla Cornil-Baïotto, Michael D. Gladders, Stephane V. Werner, Jessica E. Doppel, Benjamin Floyd, Anthony H. Gonzalez, Richard J. Massey, Mireia Montes, Matthew B. Bayliss, Lindsey E. Bleem, Rebecca E. A. Canning, Alastair C. Edge, Michael McDonald, Priyamvada Natarajan, Antony A. Stark, Raven Gassis   +26 more
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A Pilot Study for the CSST Slitless Spectroscopic Quasar Survey Based on Mock Data

The Astrophysical Journal
The wide survey of the Chinese Space Station Telescope (CSST) will observe a large field of 17,500 deg ^2 . The GU, GV, and GI grism observations of CSST will cover the wavelength range from 2550 to 10000 Å at a resolution of R  ∼ 200 and a depth of ...
Yuxuan Pang, Xue-Bing Wu, Yuming Fu, Rui Zhu, Bing Lyu, Huimei Wang, Xiaotong Feng   +6 more
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