Results 131 to 140 of about 726,750 (238)

The ∞ Galaxy: A Candidate Direct-collapse Supermassive Black Hole between Two Massive, Ringed Nuclei

open access: yesThe Astrophysical Journal Letters
We report the discovery of an unusual z = 1.14 object, dubbed the ∞ galaxy, in JWST imaging of the COSMOS field. Its rest-frame near-IR light is dominated by two compact nuclei with stellar masses of ∼10 ^11 M _⊙ and a projected separation of 10 kpc ...
Pieter van Dokkum   +5 more
doaj   +1 more source

AT2021aeuk: A Repeating Partial Tidal Disruption Event Candidate in a Narrow-line Seyfert 1 Galaxy

open access: yesThe Astrophysical Journal
A black hole (BH) can tear apart a star that ventures within its tidal radius, producing a luminous flare as the stellar debris falls back, known as a tidal disruption event (TDE).
Jingbo Sun   +15 more
doaj   +1 more source

Light and hyper nuclei formation at sNN= 3 GeV Au+Au collisions using Wigner coalescence approach

open access: yesPhysics Letters B
The production of light nuclei and hyper-nuclei in heavy-ion collisions, particularly at high baryon density, is crucial for understanding the dynamical evolution of the collision system and exploring the internal state of nuclear matter of compacted ...
L.K. Liu   +4 more
doaj   +1 more source

Embedded Young Stellar Objects near H72.97-69.39: A Forming Super Star Cluster in N79

open access: yesThe Astrophysical Journal
We present 102 embedded young stellar object (YSO) candidates associated with the H72.97-69.39 super star cluster (SSC) in the Large Magellanic Cloud (LMC).
Omnarayani Nayak   +12 more
doaj   +1 more source

The Herbig–Haro Outflow Content and Star-forming Environment of Circinus West and East

open access: yesThe Astronomical Journal
We report the results of a spatially compete, high-sensitivity survey for Herbig–Haro (HH) outflows in the Western and Eastern Circinus molecular clouds.
T. A. Rector   +4 more
doaj   +1 more source

A Data-driven Search For Mid-infrared Excesses Among Five Million Main-sequence FGK Stars

open access: yesThe Astronomical Journal
Stellar infrared excesses can indicate various phenomena of interest, from protoplanetary disks to debris disks, or (more speculatively) techno-signatures along the lines of Dyson spheres.
Gabriella Contardo, David W. Hogg
doaj   +1 more source

Young Stellar Populations in the Collisional Ring Galaxy NGC 922 [PDF]

open access: bronze, 2009
Anne Pellerin   +5 more
openalex   +1 more source

Constraining scalar fields with stellar kinematics and collisional dark matter [PDF]

open access: green, 2010
Pau Amaro‐Seoane   +3 more
openalex   +1 more source

Detection of Young Massive White Dwarfs in Core-collapsed Globular Cluster NGC 362

open access: yesThe Astrophysical Journal Letters
Core-collapsed globular clusters are ideal targets to explore the presence of stellar collision products. Here, we have studied 17 far-UV bright white dwarf (WD) members in the globular cluster NGC 362 using data obtained from the Ultra Violet Imaging ...
R. K. S. Yadav   +4 more
doaj   +1 more source

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