Results 171 to 180 of about 3,884 (261)

A binary-related origin mediated by environmental conditions for blue straggler stars. [PDF]

Nat Commun
Ferraro FR, Lanzoni B, Vesperini E, Dalessandro E, Cadelano M, Pallanca C, Beccari G, Nardiello D, Libralato M, Piotto G.   +9 more
europepmc   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

Precision analysis of NGC 2158 with Gaia DR3. [PDF]

Sci Rep
Ahmed NM, Tadross AL.
europepmc   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

Astronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar, René Hudec, Marta Mara Merono Vidagany, Fehmi Mejri   +3 more
wiley   +1 more source

Enhancing Astronaut Resilience: The Role of Elevated ROS in Adapting to Space Radiation. [PDF]

J Biomed Phys Eng
Pakroo M, Mortazavi SAR, Mortazavi SMJ.
europepmc   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, EarlyView.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Increased and varied radiation during the Sun's encounters with cold clouds in the last 10 million years. [PDF]

Sci Rep
Opher M, Giacalone J, Loeb A, Economo EP, Cummings A, Middleton J, Zucker C, Miller JA, Nica A, Hatzaki M.   +9 more
europepmc   +1 more source

Speckle Observations With PISCO in Calern (France): III. Astrometric Measurements of Visual Double Stars in 2019 and New or Revised Orbits for STT531 AB, STT77 AB, STF1338 AB, COU1746, STT260, A1109 AB, HU1291, and A632 AB

Astronomische Nachrichten, EarlyView.
ABSTRACT We present relative astrometric measurements of visual double stars, made in 2019 with the speckle camera PISCO at the 1‐m Epsilon telescope of the C2PU facility (Observatoire de la Côte d'Azur, Calern site). Our observing list contains orbital couples as well as double stars whose motion is still uncertain.
J.‐L. Prieur, M. Scardia, J.‐P. Rivet, E. Aristidi, J. F. Ling, L. Piccotti, L. Pansecchi, R. W. Argyle, L. Abe, P. Bendjoya, L. Maccarini, D. Vernet   +11 more
wiley   +1 more source

Reduced gas accretion onto galaxies due to effects of external giant radio lobes. [PDF]

Proc Natl Acad Sci U S A
Qiu Y, Cen R.
europepmc   +1 more source

Revisiting Variable Stars Toward the Globular Cluster NGC 6496 With ATLAS and Gaia Photometry

Astronomische Nachrichten, EarlyView.
ABSTRACT We revisit 13 variable stars in the field of the metal‐rich globular cluster NGC 6496, discovered by Abbas et al. (2015; Astronomical Journal 149:40) (hereafter referred to as “MA15”) via time‐series data, spanning 2 years. We improve upon the MA15 characterization of the variables using ATLAS time‐series photometry data, spanning 8 years, in ...
Madison E. Martin, Andrew Layden, Andrew McNeill   +2 more
wiley   +1 more source