Results 51 to 60 of about 5,336,206 (299)

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. IV. Detection of Near-infrared Signatures of r-process Nucleosynthesis with Gemini-South [PDF]

, 2017
We present a near-infrared spectral sequence of the electromagnetic counterpart to the binary neutron star merger GW170817 detected by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo.
R. Chornock, E. Berger, D. Kasen, D. Kasen, P. Cowperthwaite, P. Cowperthwaite, M. Nicholl, V. Villar, K. Alexander, P. Blanchard, T. Eftekhari, W. Fong, R. Margutti, P. G. Williams, J. Annis, D. Brout, Duncan A. Brown, H. Chen, M. Drout, B. Farr, B. Farr, R. Foley, J. Frieman, J. Frieman, Chris L. Fryer, K. Herner, D. Holz, R. Kessler, T. Matheson, B. Metzger, E. Quataert, A. Rest, A. Rest, M. Sako, D. Scolnic, N. Smith, M. Soares-Santos, M. Soares-Santos   +37 more
semanticscholar   +1 more source

The first direct double neutron star merger detection: Implications for cosmic nucleosynthesis [PDF]

Astronomy & Astrophysics, 2017
Context. The astrophysical r-process site where about half of the elements, heavier than iron are produced, has been a puzzle for several decades. Here we discuss the role of one of the leading ideas – neutron star mergers (NSMs) – in the light of the ...
S. Rosswog, J. Sollerman, U. Feindt, A. Goobar, O. Korobkin, R. Wollaeger, C. Fremling, M. Kasliwal   +7 more
semanticscholar   +1 more source

Detections of Neutron Stars in the Extreme Ultraviolet [PDF]

Annals of the New York Academy of Sciences, 1995
Neutron stars were not expected to be observable in the extreme ultraviolet and hence their detection in this band is a surprise. More important is that EUV observations provide unique new information on these objects. In the accompanying Table 1, I list the neutron stars detected in the EUV with the Extreme Ultraviolet Explorer (EUVE).
openaire   +1 more source

3D Multi-Phase Sub-Pixel PSF Estimation Based on Space Debris Detection System

Photonics
The distribution of diffuse spot energy can be used to sensitively evaluate the aberrations and defects of optical systems. Therefore, the objective and quantitative measurement of diffuse spot parameters is an important means to control the detection ...
Fan Bu, Dalei Yao, Yan Wen
doaj   +1 more source

Detecting Primordial Stars [PDF]

, 2007
[8 pages, 5 figures] Invited Talk, to appear in IMF@50: The Stellar Initial Mass Function Fifty Years Later, eds E. Corbelli, F. Palla, and H. Zinnecker (Dordrecht: Kluwer)
openaire   +2 more sources

Detecting axion stars with radio telescopes

Physics Letters B, 2018
When axion stars fly through an astrophysical magnetic background, the axion-to-photon conversion may generate a large electromagnetic radiation power. After including the interference effects of the spacially-extended axion-star source and the macroscopic medium effects, we estimate the radiation power when an axion star meets a neutron star.
Yang Bai, Yuta Hamada
openaire   +3 more sources

COOLING AND DETECTABILITY OF NEUTRON STARS [PDF]

Canadian Journal of Physics, 1966
Surface properties, temperature effects, cooling behavior, and observability of neutron stars have been studied. For this purpose, the opacity of the surface layers is calculated both for a pure iron and a pure magnesium composition. It is found that the nondegenerate layers are only a few meters thick and in no case exceed 1% of the stellar radius ...
Sachiko Tsuruta, A. G. W. Cameron
openaire   +1 more source

Star Anagram Detection and Classification

Recreational Mathematics Magazine
Abstract A star anagram is a rearrangement of the letters of one word to produce another word where no letter retains its original neighbors. These maximally shuffled anagrams are rare, comprising only about 5.7% of anagrams in English.
Jason Parker, Dan Barker
openaire   +2 more sources

MASTER Optical Detection of the First LIGO/Virgo Neutron Star Binary Merger GW170817 [PDF]

, 2017
Following the discovery of the gravitational-wave source GW170817 by three Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo antennae (Abbott et al., 2017a), the MASTER Global Robotic Net telescopes obtained the first image of the NGC 4993
V. Lipunov, E. Gorbovskoy, V. Kornilov, N. Tyurina, P. Balanutsa, A. Kuznetsov, D. Vlasenko, D. Kuvshinov, I. Gorbunov, D. Buckley, A. Krylov, R. Podesta, C. López, F. Podestà, H. Levato, C. Saffe, C. Mallamachi, S. Potter, N. Budnev, O. Gress, O. Gress, Y. Ishmuhametova, V. Vladimirov, D. Zimnukhov, V. Yurkov, Y. Sergienko, A. Gabovich, R. Rebolo, M. Serra-Ricart, G. Israelyan, V. Chazov, Xiaofeng Wang, A. Tlatov, M. Panchenko   +33 more
semanticscholar   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source