Results 81 to 90 of about 16,605,004 (178)
A 34 yr Timing Solution of the Redback Millisecond Pulsar Terzan 5A
The Astrophysical JournalWe present a 34 yr timing solution of the redback pulsar system Terzan 5A (Ter5A). Ter5A, also known as B1744−24A or J1748−2446A, has a 11.56 ms pulse period, a ~0.1 M _⊙ dwarf companion star, and an orbital period of 1.82 hr.
Alexandra C. Rosenthal +14 more
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No Evidence for Accretion around the Intermediate-mass Black Hole in Omega Centauri
The Astrophysical JournalFor over a decade, both theoretical predictions and observational studies have suggested that ω Centauri ( ω Cen), the most massive Milky Way globular cluster, might harbor an intermediate-mass black hole (IMBH).
Angiraben D. Mahida +7 more
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The Astrophysical Journal Supplement SeriesHigh-quality Extragalactic Legacy-field Monitoring (HELM) is a long-term observing program that photometrically monitors several well-studied extragalactic legacy fields with the Dark Energy Camera (DECam) imager on the CTIO 4 m Blanco telescope.
Ming-Yang Zhuang +48 more
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Why should we do astronomy? (The Real Astronomy)
, 2009 Professional Astronomers talk about why astronomy is important for society. This is the ninth and last podcast in the "Real Astronomy" series which highlights how modern astronomy is ...
Centre for Astrophysics and Supercomputing
core +1 more source
Astronomy & AstrophysicsContext. The impact of extremely low-density environments such as the diffuse intergalactic medium (IGM) on the neutral gas distribution of dwarf galaxies remains poorly explored observationally. Aims.
Namumba Brenda +14 more
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A Luminous Red Optical Flare and Hard X-Ray Emission in the Tidal Disruption Event AT 2024kmq
The Astrophysical JournalWe present the optical discovery and multiwavelength follow-up observations of AT 2024kmq, a likely tidal disruption event (TDE) associated with a supermassive ( M _BH ∼ 10 ^8 M _⊙ ) black hole in a massive galaxy at z = 0.192.
Anna Y. Q. Ho +32 more
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Sub-burst-resolved Classification and Characteristics of Double-trigger Gamma-Ray Bursts
The Astrophysical JournalOver the past two decades, Swift and Fermi have detected a handful of gamma-ray bursts (GRBs) that produced two independent onboard triggers separated by a quiescent interval long enough for the trigger system to reset (“double-trigger” events ...
Liang Li
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The Astrophysical Journal Supplement SeriesLong gamma-ray bursts (GRBs) frequently exhibit complex prompt-emission morphology, including a bright main-emission (ME) episode followed by a weaker extended-emission (EE) component.
Liang Li +7 more
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Highlighting the history of French radio astronomy. 7. The genesis of the Institute of Radioastronomy at Millimeter wavelengths (IRAM) [PDF]
, 2011 Radio astronomy in France and in Germany started around 1950. France was then building interferometers and Germany large single dishes, so it was not unexpected that their first projects involving millimetre radio astronomy were respectively with an ...
Gómez-González, Jesús +5 more
core
Relativistic Effects and Gamma-Ray Burst Polarization in Power-law Evolution
The Astrophysical Journal Supplement SeriesDespite decades of polarization observations and high significance of polarized γ -ray, X-ray, optical, and radio emissions in gamma-ray bursts (GRBs) accumulating in dozens of cases, people have yet to find a consistent scenario for understanding the ...
Liang Li, She-Sheng Xue, Rong-Gen Cai
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