Results 1 to 10 of about 448,852 (155)

Critical comments on publications by S. Hoffmann and N. Vogt on historical novae/supernovae and their candidates

Astronomische Nachrichten, Volume 342, Issue 4, Page 675-695, May 2021., 2021
Abstract We critically discuss recent articles by S. Hoffmann and N. Vogt on historical novae and supernovae (SNe) as well as their list of “24 most promising events” “with rather high probability to be a nova” (Hoffmann et al., AN, 2020, 341, 79 (P3)).
Ralph Neuhäuser, Dagmar L. Neuhäuser
wiley   +1 more source

Imaging VGOS Observations and Investigating Source Structure Effects

Journal of Geophysical Research: Solid Earth, Volume 126, Issue 4, April 2021., 2021
Abstract The next‐generation, broadband geodetic very long baseline interferometry system, named VGOS, is being developed globally with an aim to achieve 1 mm accuracy for station positions. Currently, the systematic errors in VGOS broadband delays are still about 20 ps.
Ming H. Xu, Tuomas Savolainen, Nataliya Zubko, Markku Poutanen, Susanne Lunz, Harald Schuh, Guang L. Wang   +6 more
wiley   +1 more source

The 3rd AGILE Terrestrial Gamma‐ray Flashes Catalog. Part II: Optimized Selection Criteria and Characteristics of the New Sample

Journal of Geophysical Research: Atmospheres, Volume 125, Issue 11, 16 June 2020., 2020
Abstract We present in this work the third catalog of terrestrial gamma‐ray flashes (TGFs) by the AGILE mission and the new search algorithm that was developed to produce it. We firstly introduce the new selection criteria, designed from the characteristics of WWLLN‐identified TGFs, and then applied on all data from March 2015 to September 2018 ...
C. Maiorana, M. Marisaldi, A. Lindanger, N. Østgaard, A. Ursi, D. Sarria, M. Galli, C. Labanti, M. Tavani, C. Pittori, F. Verrecchia   +10 more
wiley   +1 more source

Supergravity Model of Inflation and Explaining IceCube HESE Data via PeV Dark Matter Decay

Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020
We construct a unified model of inflation and PeV dark matter with an appropriate choice of no‐scale Kähler potential, superpotential, and gauge kinetic function in terms of MSSM fields and hidden sector Polonyi field. The model is consistent with the CMB observations and can explain the PeV neutrino flux observed at IceCube HESE.
Girish Kumar Chakravarty, Najimuddin Khan, Subhendra Mohanty, Ricardo G. Felipe   +3 more
wiley   +1 more source

Intracluster Medium through three years of WMAP [PDF]

, 2006
Wilkinson Microwave Anisotropy Probe (WMAP) has provided us with the yet highest resolution all-sky maps of the Cosmic Microwave Background. As a result of thermal Sunyaev-Zel'dovich effect, clusters of galaxies are imprinted as tiny, poorly resolved ...
Afshordi, Afshordi, Afshordi, Bennett, Benson, Carlstrom, Ettori, Fosalba, Fosalba, Hernández-Monteagudo, Hernández-Monteagudo, Kravtsov, Kravtsov, Lieu, Lin, Myers, Nagai, Navarro, Niayesh Afshordi, Schmidt, Sunyaev, Vikhlinin, Zwicky   +22 more
core   +3 more sources

The Citation Impact of Digital Preprint Archives for Solar Physics Papers [PDF]

, 2006
Papers that are posted to a digital preprint archive are typically cited twice as often as papers that are not posted. This has been demonstrated for papers published in a wide variety of journals, and in many different subfields of astronomy.
Metcalfe, Travis S.
core   +5 more sources

Decade‐long X‐ray observations of HESS J0632+057

Astronomische Nachrichten, Volume 340, Issue 6, Page 465-474, July 2019., 2019
Abstract We present the results of a decade of X‐ray observations of the gamma ray loud binary HESS J0632+057 and interpret the available broadband data in view of the system geometry and emission mechanisms. We have performed an analysis of all X‐ray data available to date from Swift, XMM‐Newton, Chandra, NuSTAR, and Suzaku.
Denys Malyshev, Maria Chernyakova, Andrea Santangelo, Gerd Pühlhofer   +3 more
wiley   +1 more source

Impact of Cosmic‐Ray Physics on Dark Matter Indirect Searches

Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
The quest for the elusive dark matter (DM) that permeates the Universe (and in general the search for signatures of physics beyond the Standard Model at astronomical scales) provides a unique opportunity and a tough challenge to the high energy astrophysics community.
Daniele Gaggero, Mauro Valli, Farinaldo Queiroz   +2 more
wiley   +1 more source

Dynamical Interactions and the Black Hole Merger Rate of the Universe [PDF]

, 2007
Binary black holes can form efficiently in dense young stellar clusters, such as the progenitors of globular clusters, via a combination of gravitational segregation and cluster evaporation.
Frederic A. Rasio, M. Freitag, N. Bastian, Richard O’Shaughnessy, Ryan M. O’Leary, S. F. Portegies Zwart, T. M. Heckman   +6 more
core   +2 more sources

Growth of Accreting Supermassive Black Hole Seeds and Neutrino Radiation

Journal of Astrophysics, Volume 2015, Issue 1, 2015., 2015
In the framework of microscopic theory of black hole (MTBH), which explores the most important processes of rearrangement of vacuum state and spontaneous breaking of gravitation gauge symmetry at huge energies, we have undertaken a large series of numerical simulations with the goal to trace an evolution of the mass assembly history of 377 plausible ...
Gagik Ter-Kazarian, Gary Wegner
wiley   +1 more source