Results 81 to 90 of about 35,842 (270)

JWST Imaging of the Closest Globular Clusters—V. The White Dwarfs Cooling Sequence of M4

Astronomische Nachrichten, Volume 346, Issue 2, February 2025.
ABSTRACT We combine infrared (IR) observations collected by the James Webb Space Telescope with optical deep images by the Hubble Space Telescope taken ~20 years earlier to compute proper‐motion membership for the globular cluster (GC) M4 (NGC 6121) along its entire white dwarf (WD) cooling sequence (CS).
Luigi R. Bedin, Mattia Libralato, Maurizio Salaris, Domenico Nardiello, Michele Scalco, Massimo Griggio, Jay Anderson, Pierre Bergeron, Andrea Bellini, Roman Gerasimov, Adam J. Burgasser, Daniel Apai   +11 more
wiley   +1 more source

UEG Week 2023 Poster Presentations

, 2023
United European Gastroenterology Journal, Volume 11, Issue S8, Page 535-1498, October 2023.
wiley   +1 more source

Warm Molecular Hydrogen in Nearby, Luminous Infrared Galaxies [PDF]

The Astronomical Journal, 2018
Abstract Mid-infrared molecular hydrogen (H2) emission is a powerful cooling agent in galaxy mergers and in radio galaxies; it is a potential key tracer of gas evolution and energy dissipation associated with mergers, star formation, and accretion onto supermassive black holes. We detect mid-IR H2 line emission in at least one rotational
Andreea O. Petric, Lee Armus, Nicolas Flagey, Pierre Guillard, Justin Howell, Hanae Inami, Vassillis Charmandaris, Aaron Evans, Sabrina Stierwalt, Tanio Diaz-Santos, Nanyao Lu, Henrik Spoon, Joe Mazzarella, Phil Appleton, Ben Chan, Jason Chu, Derek Hand, George Privon, David Sanders, Jason Surace, Kevin Xu, Yinghe Zhao   +21 more
openaire   +5 more sources

An Hα Impression of Lyα Galaxies at z ≃ 6 with Deep JWST/NIRCam Imaging

The Astrophysical Journal Letters, 2023
We present a study of seven spectroscopically confirmed (Ly α -emitting) galaxies at redshift z ≃ 6 using the JWST/NIRCam imaging data. These galaxies, with a wide range of Ly α luminosities, were recently observed in a series of NIRCam broad and medium ...
Yuanhang Ning, Zheng Cai, Linhua Jiang, Xiaojing Lin, Shuqi Fu, Daniele Spinoso   +5 more
doaj   +1 more source

Accretion Onto Weakly Magnetized Neutron Stars: Polarization Theory and Its Application to X‐Ray Burster GX 13+1

Astronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT Observations show that the x‐ray emission of the accreting weakly magnetized neutron stars (WMNSs) is polarized. In this article, we summarize the analytical models for the polarized emission of various components of the WMNSs. We introduce a missing theoretical model, where we assume the emission comes from the spreading layer, the extension ...
Anna Bobrikova, Sofia V. Forsblom
wiley   +1 more source

Characterizing the Molecular Gas in Infrared Bright Galaxies with CARMA

The Astrophysical Journal
We present the CO(1–0) maps of 28 infrared-bright galaxies from the Great Observatories All-Sky Luminous Infrared Galaxy Survey (GOALS) taken with the Combined Array for Research in Millimeter Astronomy (CARMA).
Katherine Alatalo, Andreea O. Petric, Lauranne Lanz, Kate Rowlands, Vivian U, Kirsten L. Larson, Lee Armus, Loreto Barcos-Muñoz, Aaron S. Evans, Jin Koda, Yuanze Luo, Anne M. Medling, Kristina E. Nyland, Justin A. Otter, Pallavi Patil, Fernando Peñaloza, Diane Salim, David B. Sanders, Elizaveta Sazonova, Maya Skarbinski, Yiqing Song, Ezequiel Treister, C. Meg Urry   +22 more
doaj   +1 more source

The Oxygen Abundances of Luminous and Ultraluminous Infrared Galaxies [PDF]

The Astrophysical Journal, 2008
Luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) dominate the star formation rate budget of the universe at z > 1, yet no local measurements of their heavy element abundances exist. We measure nuclear or near-nuclear oxygen abundances in a sample of 100 star-forming LIRGs and ULIRGs using new, previously published, and archival ...
David S. N. Rupke, Andrew J. Baker, Sylvain Veilleux   +2 more
openaire   +3 more sources

Nuclear Spectral Energy Distributions of Luminous Infrared Galaxies

The Astrophysical Journal
We present nuclear (100–150 pc) spectral energy distributions (SEDs) for a sample of 23 nearby luminous infrared galaxies hosting a total of 28 nuclei. We gather aperture photometry from high-resolution X-ray to submillimeter data for each nuclear region
Tianmu Gao, Vivian U, Connor W. Auge, Yiqing Song, Sean T. Linden, Kazushi Iwasawa, Alessandro Peca, George C. Privon, David B. Sanders, Núria Torres-Albà, Loreto Barcos-Muñoz, James Agostino, Anne M. Medling   +12 more
doaj   +1 more source

ALMA 0.5 kpc Resolution Spatially Resolved Investigations of Nuclear Dense Molecular Gas Properties in Nearby Ultraluminous Infrared Galaxies Based on HCN and HCO+ Three Transition Line Data

The Astrophysical Journal, 2023
We present the results of our ALMA ≲0.5 kpc resolution dense molecular line (HCN and HCO ^+ J = 2–1, J = 3–2, and J = 4–3) observations of 12 nearby (ultra)luminous infrared galaxies ([U]LIRGs). After matching beam sizes of all molecular line data to the
Masatoshi Imanishi, Shunsuke Baba, Kouichiro Nakanishi, Takuma Izumi   +3 more
doaj   +1 more source

NICMOS Observations of Interaction Triggered Star Formation in the Luminous Infrared Galaxy NGC 6090 [PDF]

, 1999
High resolution, 1.1, 1.6, and 2.2 micron imaging of the luminous infrared galaxy NGC 6090 obtained with NICMOS of the Hubble Space Telescope are presented.
Dinshaw, N., Epps, H., Evans, A. S., Rieke, M., Scoville, N. Z.   +4 more
core   +2 more sources