Results 51 to 60 of about 1,327 (234)

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

Resolved CO(1–0) Emission and Gas Properties in Luminous Dusty Star-forming Galaxies at z = 2–4

The Astrophysical Journal, 2023
We present the results of a survey of CO(1−0) emission in 14 infrared luminous dusty star-forming galaxies (DSFGs) at 2 < z < 4 with the NSF’s Karl G. Jansky Very Large Array.
F. Stanley, B. M. Jones, D. A. Riechers, C. Yang, S. Berta, P. Cox, T. J. L. C. Bakx, A. Cooray, H. Dannerbauer, S. Dye, D. H. Hughes, R. J. Ivison, S. Jin, M. Lehnert, R. Neri, A. Omont, P. van der Werf, A. Weiss   +17 more
doaj   +1 more source

GOALS-JWST: The Warm Molecular Outflows of the Merging Starburst Galaxy NGC 3256

The Astrophysical Journal
We present James Webb Space Telescope (JWST) integral-field spectrograph observations of NGC 3256, a local infrared-luminous late-stage merging system with two nuclei roughly 1 kpc apart, both of which have evidence of cold molecular outflows. Using JWST/
Thomas Bohn, Hanae Inami, Aditya Togi, Lee Armus, Thomas S.-Y. Lai, Loreto Barcos-Munoz, Yiqing Song, S. T. Linden, Jason Surace, Marina Bianchin, Vivian U, Aaron S. Evans, Torsten Böker, Matthew A. Malkan, Kirsten L. Larson, Sabrina Stierwalt, Victorine A. Buiten, Vassilis Charmandaris, Tanio Diaz-Santos, Justin H. Howell, George C. Privon, Claudio Ricci, Paul P. van der Werf, Susanne Aalto, Christopher C. Hayward, Justin A. Kader, Joseph M. Mazzarella, Francisco Muller-Sanchez, David B. Sanders   +28 more
doaj   +1 more source

GOALS-JWST: Tracing AGN Feedback on the Star-forming Interstellar Medium in NGC 7469

The Astrophysical Journal Letters, 2022
We present James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) integral-field spectroscopy of the nearby merging, luminous infrared galaxy, NGC 7469.
Thomas S.-Y. Lai, Lee Armus, Vivian U, Tanio Díaz-Santos, Kirsten L. Larson, Aaron Evans, Matthew A. Malkan, Philip Appleton, Jeff Rich, Francisco Müller-Sánchez, Hanae Inami, Thomas Bohn, Jed McKinney, Luke Finnerty, David R. Law, Sean T. Linden, Anne M. Medling, George C. Privon, Yiqing Song, Sabrina Stierwalt, Paul P. van der Werf, Loreto Barcos-Muñoz, J. D. T. Smith, Aditya Togi, Susanne Aalto, Torsten Böker, Vassilis Charmandaris, Justin Howell, Kazushi Iwasawa, Francisca Kemper, Joseph M. Mazzarella, Eric J. Murphy, Michael J. I. Brown, Christopher C. Hayward, Jason Marshall, David Sanders, Jason Surace   +36 more
doaj   +1 more source

Review of asteroid, meteor, and meteorite‐type links

Meteoritics &Planetary Science, Volume 60, Issue 4, Page 928-973, April 2025.
Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens, Hadrien A. R. Devillepoix   +1 more
wiley   +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

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

PEARLS: Discovery of Point-source Features within Galaxies in the North Ecliptic Pole Time Domain Field

The Astrophysical Journal
The first public 0.9–4.4 μ m NIRCam images of the North Ecliptic Pole Time Domain Field uncovered galaxies displaying point-source features in their cores as seen in the longer-wavelength filters. We visually identified a sample of 66 galaxies (∼1 galaxy
Rafael Ortiz III, Rogier A. Windhorst, Seth H. Cohen, Steven P. Willner, Rolf A. Jansen, Timothy Carleton, Patrick S. Kamieneski, Michael J. Rutkowski, Brent M. Smith, Jake Summers, Cheng Cheng, Dan Coe, Christopher J. Conselice, Jose M. Diego, Simon P. Driver, Jordan C. J. D’Silva, Brenda L. Frye, Hansung B. Gim, Norman A. Grogin, Heidi B. Hammel, Nimish P. Hathi, Benne W. Holwerda, Minhee Hyun, Myungshin Im, William C. Keel, Anton M. Koekemoer, Juno Li, Madeline A. Marshall, Tyler J. McCabe, Noah J. McLeod, Stefanie N. Milam, Rosalia O’Brien, Nor Pirzkal, Aaron S. G. Robotham, Russell E. Ryan Jr., Christopher N. A. Willmer, Haojing Yan, Min S. Yun, Adi Zitrin   +38 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

Arp 302: Nonstarburst Luminous Infrared Galaxies [PDF]

The Astrophysical Journal, 1997
AAS Latex plus two postscript figures. ApJ Letters (accepted)
Robert A. Gruendl, Yu Gao, K. Y. Lo
openaire   +3 more sources