Zobrazeno 1 - 10
of 404
pro vyhledávání: '"Senchyna A"'
The first few cycles of JWST have identified an overabundance of UV-bright galaxies and a general excess of UV luminosity density at $z\gtrsim10$ compared to expectations from most (pre-JWST) theoretical models. Moreover, some of the brightest high-r
Externí odkaz:
http://arxiv.org/abs/2410.14846
Autor:
Xu, Xinfeng, Henry, Alaina, Heckman, Timothy, Carr, Cody, Strom, Allison L., Jones, Tucker, Berg, Danielle A., Chisholm, John, Erb, Dawn, James, Bethan L., Jaskot, Anne, Martin, Crystal L., Mingozzi, Matilde, Senchyna, Peter, Roy, Namrata, Scarlata, Claudia, Stark, Daniel P.
Galactic outflows provide important feedback effects to regulate the evolution of the host galaxies. Two primary diagnostics of galactic outflows are broad and/or blueshifted emission and absorption lines. Even though well-established methods exist t
Externí odkaz:
http://arxiv.org/abs/2409.19776
Autor:
Topping, Michael W., Stark, Daniel P., Senchyna, Peter, Chen, Zuyi, Zitrin, Adi, Endsley, Ryan, Charlot, Stéphane, Furtak, Lukas J., Maseda, Michael V., Plat, Adele, Smit, Renske, Mainali, Ramesh, Chevallard, Jacopo, Molyneux, Stephen, Rigby, Jane R.
JWST has recently discovered a subset of reionization era galaxies with ionized gas that is metal poor in oxygen and carbon but heavily-enriched in nitrogen. This abundance pattern is almost never seen in lower redshift galaxies but is commonly obser
Externí odkaz:
http://arxiv.org/abs/2407.19009
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:
Chen, Yuguang, Jones, Tucker, Sanders, Ryan, Fadda, Dario, Sutter, Jessica, Minchin, Robert, Huntzinger, Erin, Senchyna, Peter, Stark, Daniel, Spilker, Justin, Weiner, Benjamin, Roberts-Borsani, Guido
In Chen et al., 2023 (C23; arXiv:2304.09898), we introduced a new method to directly measure temperature fluctuations and applied it to a nearby dwarf galaxy, Mrk 71, finding a temperature fluctuation parameter $t^2 = 0.008\pm 0.043$. This result is
Externí odkaz:
http://arxiv.org/abs/2402.03105
Autor:
Topping, Michael W., Stark, Daniel P., Senchyna, Peter, Plat, Adele, Zitrin, Adi, Endsley, Ryan, Charlot, Stéphane, Furtak, Lukas J., Maseda, Michael V., Smit, Renske, Mainali, Ramesh, Chevallard, Jacopo, Molyneux, Stephen, Rigby, Jane R.
Nearly a decade ago, we began to see indications that reionization-era galaxies power hard radiation fields rarely seen at lower redshift. Most striking were detections of nebular CIV emission in what appeared to be typical low mass galaxies, requiri
Externí odkaz:
http://arxiv.org/abs/2401.08764
Autor:
Hu, Weida, Martin, Crystal L., Gronke, Max, Gazagnes, Simon, Hayes, Matthew, Chisholm, John, Heckman, Timothy, Mingozzi, Matilde, Roy, Namrata, Senchyna, Peter, Xu, Xinfeng, Berg, Danielle A., James, Bethan L., Stark, Daniel P., Arellano-Córdova, Karla Z., Henry, Alaina, Jaskot, Anne E., Kumari, Nimisha, Parker, Kaelee S., Scarlata, Claudia, Wofford, Aida, Amorín, Ricardo O., Leonhardes-Barboza, Naunet, Brinchmann, Jarle, Carr, Cody
Lyman-alpha line profiles are a powerful probe of ISM structure, outflow speed, and Lyman continuum escape fraction. In this paper, we present the Ly$\alpha$ line profiles of the COS Legacy Archive Spectroscopic SurveY, a sample rich in spectroscopic
Externí odkaz:
http://arxiv.org/abs/2307.04911
Autor:
Mingozzi, Matilde, James, Bethan L., Berg, Danielle A., Arellano-Córdova, Karla Z., Plat, Adele, Scarlata, Claudia, Aloisi, Alessandra, Amorín, Ricardo O., Brinchmann, Jarle, Charlot, Stéphane, Chisholm, John, Feltre, Anna, Gazagnes, Simon, Hayes, Matthew, Heckman, Timothy, Hernandez, Svea, Kewley, Lisa J., Kumari, Nimisha, Leitherer, Claus, Martin, Crystal L., Maseda, Michael, Nanayakkara, Themiya, Ravindranath, Swara, Rigby, Jane R., Senchyna, Peter, Skillman, Evan D., Sugahara, Yuma, Wilkins, Stephen M., Wofford, Aida, Xu, Xinfeng
In the current JWST era, rest-frame UV spectra play a crucial role in enhancing our understanding of the interstellar medium (ISM) and stellar properties of the first galaxies in the epoch of reionization (EoR, $z>6$). Here, we compare well-known and
Externí odkaz:
http://arxiv.org/abs/2306.15062
Autor:
Chen, Yuguang, Jones, Tucker, Sanders, Ryan, Fadda, Dario, Sutter, Jessica, Minchin, Robert, Huntzinger, Erin, Senchyna, Peter, Stark, Daniel, Spilker, Justin, Weiner, Benjamin, Roberts-Borsani, Guido
The heavy element content ("metallicity") of the Universe is a record of the total star formation history. Gas-phase metallicity in galaxies, as well as its evolution with time, is of particular interest as a tracer of accretion and outflow processes
Externí odkaz:
http://arxiv.org/abs/2304.09898
Autor:
Aydi, E., Chomiuk, L., Mikołajewska, J., Brink, J., Metzger, B. D., Strader, J., Buckley, D. A. H., Harvey, E. J., Holoien, T. W. -S., Izzo, L., Kawash, A., Linford, J. D., Molaro, P., Mollina, B., Mróz, P., Mukai, K., Orio, M., Panurach, T., Senchyna, P., Shappee, B. J., Shen, K. J., Sokoloski, J. L., Sokolovsky, K. V., Urquhart, R., Williams, R. E.
We present early spectral observations of the very slow Galactic nova Gaia22alz, over its gradual rise to peak brightness that lasted 180 days. During the first 50 days, when the nova was only 3--4 magnitudes above its normal brightness, the spectra
Externí odkaz:
http://arxiv.org/abs/2304.04306