Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Senchyna, Peter"'
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:
Senchyna, Peter, Stark, Daniel P., Vidal-García, Alba, Chevallard, Jacopo, Charlot, Stéphane, Mainali, Ramesh, Jones, Tucker, Wofford, Aida, Feltre, Anna, Gutkin, Julia
Nearby dwarf galaxies provide a unique laboratory in which to test stellar population models below Z(circle dot)/2. Such tests are particularly important for interpreting the surprising high-ionization ultraviolet (UV) line emission detected at z > 6
Externí odkaz:
http://hdl.handle.net/10150/625962
http://arizona.openrepository.com/arizona/handle/10150/625962
http://arizona.openrepository.com/arizona/handle/10150/625962
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
The first JWST spectroscopy of the luminous galaxy GN-z11 simultaneously both established its redshift at $z=10.6$ and revealed a rest-ultraviolet spectrum dominated by signatures of highly-ionized nitrogen, which has so far defied clear interpretati
Externí odkaz:
http://arxiv.org/abs/2303.04179
Autor:
Tang, Mengtao, Stark, Daniel P., Chen, Zuyi, Mason, Charlotte, Topping, Michael, Endsley, Ryan, Senchyna, Peter, Plat, Adèle, Lu, Ting-Yi, Whitler, Lily, Robertson, Brant, Charlot, Stéphane
We describe new JWST/NIRSpec observations of galaxies at $z\gtrsim7$ taken from the CEERS survey. Previous observations of this area have revealed associations of Ly$\alpha$ emitters at redshifts ($z=7.5$, $7.7$, $8.7$) where the intergalactic medium
Externí odkaz:
http://arxiv.org/abs/2301.07072