Results 21 to 30 of about 46,290 (218)

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

Fast Radio Bursts: An Extragalactic Enigma [PDF]

Annual Review of Astronomy and Astrophysics, 2019
We summarize our understanding of millisecond radio bursts from an extragalactic population of sources. Fast radio bursts (FRBs) occur at an extraordinary rate, thousands per day over the entire sky with radiation energy densities at the source about ten
J. Cordes, S. Chatterjee
semanticscholar   +1 more source

Fast Radio Bursts [PDF]

, 2019
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 ...
Hessels, J. W. T., Lorimer, D. R., Petroff, E.   +2 more
core   +2 more sources

On determination of the Galactic aberration constant

Publications of the Pulkovo_Observatory, 2023
Galactic aberration in proper motions (GA) has an amplitude (also known as the Galactic aberration constant) of about 5 µas/yr, which is substantial for the modern highly accurate astrometric observations such as Gaia and radio astrometry.
Z.M. Malkin
semanticscholar   +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

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

Regulation of Star Formation by a Hot Circumgalactic Medium

The Astrophysical Journal, 2023
Galactic outflows driven by supernovae (SNe) are thought to be a powerful regulator of a galaxy’s star-forming efficiency. Mass, energy, and metal outflows ( η _M , η _E , and η _Z , here normalized by the star formation rate, the SNe energy, and metal ...
Christopher Carr, Greg L. Bryan, Drummond B. Fielding, Viraj Pandya, Rachel S. Somerville   +4 more
doaj   +1 more source

INTEGRAL/IBIS 7-year All-Sky Hard X-Ray Survey. Part II: Catalog of Sources

, 2010
This paper is the second in a series devoted to the hard X-ray (17-60 keV) whole sky survey performed by the INTEGRAL observatory over seven years. Here we present a catalog of detected sources which includes 521 objects, 449 of which exceed a 5 sigma ...
Abdo, Ajello, Aleksandrovich, Altamirano, Augello, Barlow, Barlow, Barthelmy, Bassa, Bassani, Bassani, Bassani, Bassani, Bazzano, Beckmann, Beckmann, Bikmaev, Bikmaev, Bikmaev, Bikmaev, Bird, Bird, Bird, Bird, Bodaghee, Brandt, Brandt, Brandt, Brandt, Brunschweiger, Burenin, Burenin, Burenin, Burenin, Burenin, Butler, Butters, Bykov, Bykov, Bélanger, Cackett, Cadol le Bel, Chaty, Chelovekov, Chelovekov, Chelovekov, Chelovekov, Chernyakova, Chernyakova, Chernyakova, Cornelisse, Courvoisier, Crawford, Cusumano, Dean, Den Hartog, den Hartog, den Hartog, Donato, E. Churazov, Enya, Fiocchi, Fisher, Galloway, Gehrels, Gotz, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Grebenev, Gros, Gänsicke, Halpern, Hannikainen, Im, in ’t Zand, in ’t Zand, Jauncey, Karasev, Karasev, Keek, Kniazev, Kniazev, Kretschmar, Krivonos, Krivonos, Krivonos, Krivonos, Krivonos, Krivonos, Kuiper, Kuiper, Kuiper, Kuiper, Kuulkers, Kuulkers, Landi, Landi, Landi, Landi, Leyder, Liu, Liu, Lubinski, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, Lutovinov, M. Revnivtsev, Malizia, Malizia, Markwardt, Markwardt, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Masetti, Mescheryakov, Molkov, Molkov, Molkov, Morelli, Negueruela, Negueruela, Nespoli, Paizis, Palmer, Parisi, Patel, Pavlinskii, Potter, Produit, R. Krivonos, R. Sunyaev, Ratti, Rea, Reig, Reig, Renaud, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Rodriguez, Rodriguez, Rodriguez, Rodriguez, Rodriguez, S. Grebenev, S. Tsygankov, Sazonov, Sazonov, Sazonov, Sguera, Sguera, Sidoli, Smith, Soldi, Soldi, Steeghs, Sunyaev, Sunyaev, Sunyaev, Terrier, Tomsick, Tomsick, Tomsick, Tomsick, Tomsick, Tomsick, Torrejón, Torres, Torres, Tueller, Tueller, Turler, Ubertini, Ubertini, Walter, Walter, Watson, Wijnands, Winkler, Winter, Zhou, Zurita Heras   +220 more
core   +1 more source

The Space Motion of the Globular Cluster NGC 6397 [PDF]

, 2007
As a by-product of high-precision, ultra-deep stellar photometry in the Galactic globular cluster NGC 6397 with the Hubble Space Telescope, we are able to measure a large population of background galaxies whose images are nearly point-like. These provide
Brad M. S. Hansen, Dauphole B., Dauphole B., David B. Reitzel, Giovanni Carraro, Gregory G. Fahlman, Harvey B. Richer, Ivan R. King, James P. Brewer, Jarrod R. Hurley, Jasonjot S. Kalirai, Jay Anderson, Michael M. Shara, Peter B. Stetson, R. Michael Rich, Saul D. Davis, Sébastien Lépine   +16 more
core   +2 more sources