Results 11 to 20 of about 45,520 (173)

Development of galactic and extragalactic astronomy in Kharkov University [PDF]

Astronomical School’s Report, 2002
Development of investigations in field of galactic and extragalactic in Kharkov University since the moment of their beginnings (from 90th years of XX century) is analyzing. Three periods are distinguished: before the 30th, between 30th and 70th, and after the 70th years of the XX century.
openaire   +2 more sources

Parsec-scale structure in the warm ISM from polarized galactic radio background observations [PDF]

, 2001
We present multi-frequency polarization observations of the diffuse radio synchrotron background modulated by Faraday rotation, in two directions of positive latitude.
de Bruyn, A. G., Haverkorn, M., Katgert, P.   +2 more
core   +3 more sources

Extragalactic and galactic sources: New evidence, new challenges, new opportunities

EPJ Web of Conferences, 2013
Recent data bring in sharper focus the issue of relative contributions of galactic and extragalactic sources of ultrahigh-energy cosmic rays. On the one hand, there is some new evidence, from gamma-ray observations of blazars, that cosmic rays are ...
Kusenko Alexander
doaj   +1 more source

LSST Survey Strategy in the Galactic Plane and Magellanic Clouds

The Astrophysical Journal Supplement Series, 2023
Galactic science encompasses a wide range of subjects in the study of the Milky Way and Magellanic Clouds, from young stellar objects to X-ray binaries.
R. A. Street, X. Li, S. Khakpash, E. Bellm, L. Girardi, L. Jones, N. S. Abrams, Y. Tsapras, M. P. G. Hundertmark, E. Bachelet, P. Gandhi, P. Szkody, W. I. Clarkson, R. Szabó, L. Prisinzano, R. Bonito, D. A. H. Buckley, J. P. Marais, R. Di Stefano   +18 more
doaj   +1 more source

RadioAstron space-VLBI project: studies of masers in star forming regions of our Galaxy and megamasers in external galaxies [PDF]

, 2017
Observations of the masers in the course of RadioAstron mission yielded detections of fringes for a number of sources in both water and hydroxyl maser transitions. Several sources display numerous ultra-compact details. This proves that implementation of
Alakoz, A. V., Baan, W. A., Shakhvorostova, N. N., Sobolev, A. M.   +3 more
core   +1 more source

Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey [PDF]

, 2014
Recent work has exploited pulsar survey data to identify temporally isolated, millisecond-duration radio bursts with large dispersion measures (DMs). These bursts have been interpreted as arising from a population of extragalactic sources, in which case ...
Allen, B., Aulbert, C., Bogdanov, S., Brazier, A., Camilo, F., Chatterjee, S., Cordes, J. M., Crawford, F., Deneva, J. S., Fehrmann, H., Freire, P. C. C., Hessels, J. W. T., Jenet, F. A., Karako-Argaman, C., Kaspi, V. M., Knispel, B., Lazarus, P., Lee, K. J., Lorimer, D. R., Lynch, R., Lyne, A. G., McLaughlin, M. A., Ransom, S. M., Scholz, P., Siemens, X., Spitler, L. G., Stairs, I. H., Stovall, K., Swiggum, J. K., van Leeuwen, J., Venkataraman, A., Wharton, R. S., Zhu, W. W.   +32 more
core   +4 more sources

Perspectives of High Energy Neutrino Astronomy [PDF]

, 2006
This work discusses the perspectives to observe fluxes of high energy astrophysical neutrinos with the planned km3 telescopes. On the basis of the observations of GeV and TeV gamma-rays, and of ultra high energy cosmic rays, it is possible to construct ...
Barr, Berezinsky, Bertone, Brandt, Costantini, Dar, Engel, Falcke, Fletcher, Fukugita, Giacconi, Hauser, Heavens, Learned, Letessier-Selvon, Mannheim, Marconi, Mukherjee, Paolo Lipari, Piran, Semikoz, Stecker, Ueda, Waxman, Waxman, Zhang   +25 more
core   +4 more sources

Fast Radio Bursts [PDF]

, 2013
The discovery of radio pulsars over a half century ago was a seminal moment in astronomy. It demonstrated the existence of neutron stars, gave a powerful observational tool to study them, and has allowed us to probe strong gravity, dense matter, and the ...
Petroff, E., Hessels, J. W. T., Lorimer, D. R.   +2 more
core   +4 more sources

How Tycho Brahe’s recordings in 1572 support SN 1572 as a type I(a) supernova

Frontiers in Astronomy and Space Sciences, 2023
The 450th anniversary of the discovery of the SN 1572 supernova event was celebrated in 2022. A closer look at the historical development of the field of supernova astronomy reveals the scientific importance of Tycho Brahe’s 1572 observations of this ...
Tobias C. Hinse, Tobias C. Hinse, Bertil F. Dorch, Bertil F. Dorch, Lars V. T. Occhionero, Jakob P. Holck   +5 more
doaj   +1 more source

The Anatomy of a Turbulent Radiative Mixing Layer: Insights from an Analytic Model with Turbulent Conduction and Viscosity

The Astrophysical Journal, 2023
Turbulent radiative mixing layers (TRMLs) form at the interface of cold, dense gas and hot, diffuse gas in motion with each other. TRMLs are ubiquitous in and around galaxies on a variety of scales, including galactic winds and the circumgalactic medium.
Zirui Chen, Drummond B. Fielding, Greg L. Bryan   +2 more
doaj   +1 more source