Zobrazeno 1 - 10
of 8 599
pro vyhledávání: '"Rickards A"'
Autor:
Chen, Yuguang, Jones, Tucker, Sanders, Ryan L., Fadda, Dario, Sutter, Jessica, Minchin, Robert, Prusinski, Nikolaus Z., Rhoades, Sunny, GC, Keerthi Vasan, Steidel, Charles C., Huntzinger, Erin, Kelly, Paige, Berg, Danielle A., Bresolin, Fabio, Herrera-Camus, Rodrigo, Vaught, Ryan J. Rickards, Roberts-Borsani, Guido, Senchyna, Peter, Spilker, Justin S., Stark, Daniel P., Weiner, Benjamin, Martin, D. Christopher, Matuszewski, Mateusz, McGurk, Rosalie C., Neill, James D.
Accurate chemical compositions of star-forming regions are a critical diagnostic tool to characterize the star formation history and gas flows which regulate galaxy formation. However, the abundance discrepancy factor (ADF) between measurements from
Externí odkaz:
http://arxiv.org/abs/2405.18476
Autor:
Hamel-Bravo, Magdalena J., Fisher, Deanne B., Berg, Danielle, Björgvinsson, Bjarki, Bolatto, Alberto D., Cameron, Alex J., Chisholm, John, Fielding, Drummond B., Herrera-Camus, Rodrigo, Kacprzak, Glenn G., Li, Miao, Ciraulo, Barbara Mazzilli, McLeod, Anna F., McPherson, Daniel K., Nielsen, Nikole M., Chu, Bronwyn Reichardt, Vaught, Ryan J. Rickards, Sandstrom, Karin
We present the results of direct-method metallicity measurements in the disk and outflow of the low-metallicity starburst galaxy NGC 1569. We use Keck Cosmic Web Imager observations to map the galaxy across 54$\arcsec$ (800 pc) along the major axis a
Externí odkaz:
http://arxiv.org/abs/2404.04600
Autor:
Chu, Bronwyn Reichardt, Fisher, Deanne B., Chisholm, John, Berg, Danielle, Bolatto, Alberto, Cameron, Alex J., Fielding, Drummond B., Herrera-Camus, Rodrigo, Kacprzak, Glenn G., Li, Miao, McLeod, Anna F., McPherson, Daniel K., Nielsen, Nikole M., Vaught, Ryan Rickards, Ridolfo, Sophia G., Sandstrom, Karin
We measure resolved (kiloparsec-scale) outflow properties in a sample of 10 starburst galaxies from the DUVET sample, using Keck/KCWI observations of H$\beta$ and [OIII]~$\lambda$5007. We measure $\sim450$ lines-of-sight that contain outflows, and us
Externí odkaz:
http://arxiv.org/abs/2402.17830
Autor:
Rickards, James, Stange, Katherine E.
We study orbits of semigroups of $\text{SL}(2,\mathbb{Z})$, and demonstrate reciprocity obstructions: we show that certain such orbits avoid squares, but not as a consequence of obstructions inherited from an algebraic set, and not as a consequence o
Externí odkaz:
http://arxiv.org/abs/2401.01860
Autor:
Nielsen, Nikole M., Fisher, Deanne B., Kacprzak, Glenn G., Chisholm, John, Martin, D. Christopher, Chu, Bronwyn Reichardt, Sandstrom, Karin M., Vaught, Ryan J. Rickards
Most of a galaxy's mass is located out to hundreds of kiloparsecs beyond its stellar component. This diffuse reservoir of gas, the circumgalactic medium (CGM), acts as the interface between a galaxy and the cosmic web that connects galaxies. We prese
Externí odkaz:
http://arxiv.org/abs/2311.00856
Autor:
Vaught, Ryan J. Rickards, Sandstrom, Karin M., Belfiore, Francesco, Kreckel, Kathryn, Méndez-Delgado, J. Eduardo, Emsellem, Eric, Groves, Brent, Blanc, Guillermo A., Dale, Daniel A., Egorov, Oleg V., Glover, Simon C. O., Grasha, Kathryn, Klessen, Ralf S., Neumann, Justus, Williams, Thomas G.
HII region electron temperatures are a critical ingredient in metallicity determinations and recent observations reveal systematic variations in the temperatures measured using different ions. We present electron temperatures ($T_e$) measured using t
Externí odkaz:
http://arxiv.org/abs/2309.17440
Autor:
McPherson, Daniel K., Fisher, Deanne B., Nielsen, Nikole M., Kacprzak, Glenn G., Chu, Bronwyn Reichardt, Cameron, Alex J., Bolatto, Alberto D., Chisholm, John, Fielding, Drummond B., Berg, Danielle, Herrera-Camus, Rodrigo, Li, Miao, Vaught, Ryan J. Rickards, Sandstrom, Karin
We present a method to characterize star-formation driven outflows from edge-on galaxies and apply this method to the metal-poor starburst galaxy, Mrk 1486. Our method uses the distribution of emission line flux (from H$\beta$ and [OIII] 5007) to ide
Externí odkaz:
http://arxiv.org/abs/2308.06918
Publikováno v:
Annals of Mathematics, Vol. 200, No. 2, pp. 749-770 (September 2024)
In a primitive integral Apollonian circle packing, the curvatures that appear must fall into one of six or eight residue classes modulo 24. The local-global conjecture states that every sufficiently large integer in one of these residue classes will
Externí odkaz:
http://arxiv.org/abs/2307.02749
Autor:
Rickards, James
We compute the linking number of two modular knots in the space $\text{PSL}(2, \mathbb{Z})\backslash\text{PSL}(2, \mathbb{R})$ with the trefoil filled in, which answers a question posed by Ghys in 2007. This computation is realized through the corres
Externí odkaz:
http://arxiv.org/abs/2301.01334
Autor:
Chastenet, Jérémy, Sutter, Jessica, Sandstrom, Karin, Belfiore, Francesco, Egorov, Oleg V., Larson, Kirsten L., Leroy, Adam K., Liu, Daizhong, Rosolowsky, Erik, Thilker, David A., Watkins, Elizabeth J., Williams, Thomas G., Barnes, Ashley T., Bigiel, Frank, Boquien, Médéric, Chevance, Mélanie, Chiang, I-Da, Dale, Daniel A., Kruijssen, J. M. Diederik, Emsellem, Eric, Grasha, Kathryn, Groves, Brent, Hassani, Hamid, Hughes, Annie, Kreckel, Kathryn, Meidt, Sharon E., Vaught, Ryan J. Rickards, Sardone, Amy, Schinnerer, Eva
We present maps tracing the fraction of dust in the form of polycyclic aromatic hydrocarbons (PAHs) in IC 5332, NGC 628, NGC 1365, and NGC 7496 from JWST/MIRI observations. We trace the PAH fraction by combining the F770W ($7.7~\mu$m) and F1130W ($11
Externí odkaz:
http://arxiv.org/abs/2301.00578