Results 41 to 50 of about 30,122 (121)

WALLABY Pilot Survey: Gas-rich Galaxy Scaling Relations from Marginally Resolved Kinematic Models

The Astrophysical Journal
We present the first set of galaxy scaling relations derived from kinematic models of the Widefield Australian Square Kilometer Array Pathfinder (ASKAP) L -band Legacy All-sky Blind surveY (WALLABY) pilot phase observations.
N. Deg, N. Arora, K. Spekkens, R. Halloran, B. Catinella, M. G. Jones, H. Courtois, K. Glazebrook, A. Bosma, L. Cortese, H. Dénes, A. Elagali, B.-Q. For, P. Kamphuis, B. S. Koribalski, K. Lee-Waddell, P. E. Mancera Piña, J. Mould, J. Rhee, L. Shao, L. Staveley-Smith, J. Wang, T. Westmeier, O. I. Wong   +23 more
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The Gasing Pangkah Collaboration. I. Asteroseismic Identification and Characterization of a Rapidly Rotating Engulfment Candidate

The Astrophysical Journal
We report the discovery and characterization of TIC 350842552 (“Zvrk”), an apparently isolated, rapidly rotating ( P _rot ∼ 99 days) red giant observed by TESS in its southern Continuous Viewing Zone.
J. M. Joel Ong, Marc Teng Yen Hon, Melinda Soares-Furtado, Alexander P. Stephan, Jennifer van Saders, Jamie Tayar, Benjamin Shappee, Daniel R. Hey, Lyra Cao, Mutlu Yıldız, Zeynep Çelik Orhan, Sibel Örtel, Benjamin Montet, Thomas W.-S. Holoien, Joss Bland-Hawthorn, Sven Buder, Gayandhi M. De Silva, Ken C. Freeman, Sarah L. Martell, Geraint F. Lewis, Sanjib Sharma, Dennis Stello   +21 more
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Kindling the First Stars. I. Dependence of Detectability of the First Stars with JWST on the Population III Stellar Masses

The Astrophysical Journal
The first Population III (Pop III) stars formed out of primordial, metal-free gas, in minihalos at z > 20, and kickstarted the cosmic processes of reionization and enrichment.
Mia Sauda Bovill, Massimo Stiavelli, Alessa Ibrahim Wiggins, Massimo Ricotti, Michele Trenti   +4 more
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Detection of Gas Inflow during the Onset of a Starburst in a Low-mass Galaxy at z = 2.45

The Astrophysical Journal Letters
The baryon cycle is crucial for understanding galaxy formation, as gas inflows and outflows vary throughout a galaxy’s lifetime and affect its star formation rate.
Erin Coleman, Keerthi Vasan G.C., Yuguang Chen, Tucker Jones, Sunny Rhoades, Richard Ellis, Dan Stark, Nicha Leethochawalit, Ryan Sanders, Kris Mortensen, Karl Glazebrook, Glenn G. Kacprzak   +11 more
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AGEL: Is the Conflict Real? Investigating Galaxy Evolution Models Using Strong Lensing at 0.3 < z < 0.9

The Astrophysical Journal
Observed evolution of the total mass distribution with redshift is crucial to testing galaxy evolution theories. To measure the total mass distribution, strong gravitational lenses complement the resolved dynamical observations that are currently limited
Nandini Sahu, Kim-Vy Tran, Sherry H. Suyu, Anowar J. Shajib, Sebastian Ertl, Glenn G. Kacprzak, Karl Glazebrook, Tucker Jones, Keerthi Vasan G. C., Tania M. Barone, A. Makai Baker, Hannah Skobe, Caro Derkenne, Geraint F. Lewis, Sarah M. Sweet, Sebastian Lopez   +15 more
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The AGEL Survey Data Release 2: A Gravitational Lens Sample for Galaxy Evolution and Cosmology

The Astronomical Journal
The ASTRO 3D Galaxy Evolution with Lenses (AGEL) Survey is an ongoing effort to spectroscopically confirm a diverse sample of gravitational lenses with high spatial resolution imaging, to facilitate a broad range of science outcomes.
Tania M. Barone, Keerthi Vasan G.C., Kim-Vy Tran, Glenn G. Kacprzak, Karl Glazebrook, Tucker Jones, Duncan J. Bowden, Faith Dalessandro, Nandini Sahu, Hannah Skobe, Rebecca J. Allen, A. Makai Baker, Daniel J. Ballard, Yuguang Chen, Thomas E. Collett, Giovanni Ferrami, Jimena González, William Gottemoller, Anishya Harshan, Xiaosheng Huang, Leena Iwamoto, Colin Jacobs, Tesla E. Jeltema, Kaustubh Rajesh Gupta, Geraint F. Lewis, Sebastian Lopez, Themiya Nanayakkara, Nikole M. Nielsen, Jackson O’Donnell, Huimin Qu, Sunny Rhoades, Anowar J. Shajib, Sarah M. Sweet, Nicolas Tejos   +33 more
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Constraining Cosmology with Double-source-plane Strong Gravitational Lenses from the AGEL Survey

The Astrophysical Journal
Double-source-plane strong gravitational lenses (DSPLs), with two sources at different redshifts, are independent cosmological probes of the dark energy equation of state parameter w and the matter density parameter Ω _m .
Duncan J. Bowden, Nandini Sahu, Anowar J. Shajib, Kim-Vy Tran, Tania M. Barone, Keerthi Vasan G. C., Daniel J. Ballard, Thomas E. Collett, Faith Dalessandro, Giovanni Ferrami, Karl Glazebrook, William J. Gottemoller, Leena Iwamoto, Tucker Jones, Glenn G. Kacprzak, Geraint F. Lewis, Haven McIntosh-Lombardo, Hannah Skobe, Sherry H. Suyu, Sarah M. Sweet   +19 more
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Flipping of the Tidal Tails of the Ophiuchus Stream due to the Decelerating Galactic Bar

The Astrophysical Journal
The Ophiuchus stellar stream presents a puzzle due to its complicated morphology, with a substructure perpendicular to the main track (spur), a broadened tail (fanning), and a shorter than expected angular extent given its old stellar population and ...
Yong Yang, Geraint F. Lewis, Denis Erkal, Ting S. Li, Andrew P. Li, Sarah L. Martell, Lara R. Cullinane, Guilherme Limberg, Daniel B. Zucker, Joss Bland-Hawthorn, Andrew B. Pace, Gary S. Da Costa, Alexander P. Ji, Sergey E. Koposov, Kyler Kuehn, Nora Shipp, Miles Pearson, Sam A. Usman, S5 Collaboration   +18 more
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Constraining Cosmological Parameters Using the Splashback Radius of Galaxy Clusters

The Astrophysical Journal
Cosmological parameters such as Ω _M and σ _8 can be measured indirectly using various methods, including galaxy cluster abundance and cosmic shear. These measurements constrain the composite parameter S _8 , leading to degeneracy between Ω _M and σ _8 .
Roan Haggar, Yuba Amoura, Charlie T. Mpetha, James E. Taylor, Kris Walker, Chris Power   +5 more
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WALLABY Pilot Survey: Star Formation Enhancement and Suppression in Gas-rich Galaxy Pairs

The Astrophysical Journal
Galaxy interactions can significantly affect the star formation in galaxies, but it remains a challenge to achieve a consensus on the star formation rate (SFR) enhancement in galaxy pairs. Here, we investigate the SFR enhancement of gas-rich galaxy pairs
Qifeng Huang, Jing Wang, Xuchen Lin, Se-Heon Oh, Xinkai Chen, B. Catinella, N. Deg, H. Dénes, B. -Q. For, B. S. Koribalski, K. Lee-Waddell, J. Rhee, A. X. Shen, Li Shao, K. Spekkens, L. Staveley-Smith, T. Westmeier, O. I. Wong, A. Bosma   +18 more
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