Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Gazagnes, Simon"'
Autor:
Parker, Kaelee S., Berg, Danielle A., Gazagnes, Simon, Chisholm, John, James, Bethan L., Hayes, Matthew, Heckman, Timothy, Henry, Alaina, Berg, Michelle A., Arellano-Cordova, Karla Z., Xu, Xinfeng, Erb, Dawn K., Martin, Crystal L., Hu, Weida, Skillman, Evan D., McQuinn, Kristen B. W., Chen, Zuyi, Stark, Dan P.
Rest-frame far-ultraviolet (FUV) observations from JWST are revolutionizing our understanding of the high-z galaxies that drove reionization and the mechanisms by which they accomplished it. To fully interpret these observations, we must be able to d
Externí odkaz:
http://arxiv.org/abs/2410.00236
Autor:
Berg, Danielle A., Skillman, Evan D., Chisholm, John, Pogge, Richard W., Gazagnes, Simon, Rogers, Noah S. J., Erb, Dawn K., Arellano-Córdova, Karla Z., Leitherer, Claus, Appel, Jackie, Moustakas, John
We investigate the stellar and nebular properties of 9 H II regions in the spiral galaxy M101 with far-ultraviolet (FUV; ~900-2000 \r{A}) and optical (~3200-10000 \r{A}) spectra. We detect significant C III] 1907,1909 nebular emission in 7 regions, b
Externí odkaz:
http://arxiv.org/abs/2405.19477
Autor:
Gazagnes, Simon, Cullen, Fergus, Mauerhofer, Valentin, Begley, Ryan, Berg, Danielle, Blaizot, Jeremy, Chisholm, John, Garel, Thibault, Leclercq, Floriane, McLure, Ross J., Verhamme, Anne
We compare mock ultraviolet C II and Si II absorption and emission line features generated using a ~10$^9$ $M_\odot$ virtual galaxy with observations of 131 $z~3$ galaxies from the VANDELS survey. We find that the mock spectra reproduce reasonably we
Externí odkaz:
http://arxiv.org/abs/2405.03759
Autor:
Leclercq, Floriane, Chisholm, John, King, Wichahpi, Zeimann, Greg, Jaskot, Anne E., Henry, Alaina, Hayes, Matthew, Flury, Sophia R., Izotov, Yuri, Prochaska, Xavier J., Verhamme, Anne, Amorín, Ricardo O., Atek, Hakim, Bait, Omkar, Blaizot, Jérémy, Carr, Cody, Ji, Zhiyuan, Reste, Alexandra Le, Ferguson, Harry C., Gazagnes, Simon, Heckman, Timothy, Komarova, Lena, Marques-Chaves, Rui, Östlin, Göran, Saldana-Lopez, Alberto, Scarlata, Claudia, Schaerer, Daniel, Thuan, Trinh X., Trebitsch, Maxime, Worseck, Gábor, Wang, Bingjie, Xu, Xinfeng
Publikováno v:
A&A 687, A73 (2024)
The geometry of the neutral gas in and around galaxies is a key regulator of the escape of ionizing photons. We present the first statistical study aiming at linking the neutral and ionized gas distributions to the Lyman continuum (LyC) escape fracti
Externí odkaz:
http://arxiv.org/abs/2401.14981
Autor:
Weiss, Laurel H., Davis, Dustin, Gebhardt, Karl, Gazagnes, Simon, Khanlari, Mahan Mirza, Cooper, Erin Mentuch, Chisholm, John, Berg, Danielle, Bowman, William P., Byrohl, Chris, Ciardullo, Robin, Fabricius, Maximilian, Farrow, Daniel, Gronwall, Caryl, Hill, Gary J., House, Lindsay R., Jeong, Donghui, Khoraminezhad, Hasti, Kollatschny, Wolfram, Komatsu, Eiichiro, Niemeyer, Maja Lujan, Saito, Shun, Schneider, Donald P., Zeimann, Gregory R.
The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) is designed to detect and measure the redshifts of more than one million Ly$\alpha$ emitting galaxies (LAEs) between $1.88 < z < 3.52$. In addition to its cosmological measurements, these dat
Externí odkaz:
http://arxiv.org/abs/2401.02490
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:
Gazagnes, Simon, Mauerhofer, Valentin, Berg, Danielle A., Blaizot, Jeremy, Verhamme, Anne, Garel, Thibault, Erb, Dawn K., Arellano-Córdova, Karla Z., Brinchmann, Jarle, Chisholm, John, Hayes, Matthew, Henry, Alaina, James, Bethan L., Jaskot, Anne, Jurlin, Nika, Martin, Crystal L., Maseda, Michael, Scarlata, Claudia, Skillman, Evan D., Wilkins, Stephen M., Wofford, Aida, Xu, Xinfeng
Observations of low-ionization state (LIS) metal lines provide crucial insights into the interstellar medium of galaxies, yet, disentangling the physical processes responsible for the emerging line profiles is difficult. This work investigates how mo
Externí odkaz:
http://arxiv.org/abs/2305.19177
Autor:
Saxena, Anchal, Cole, Alex, Gazagnes, Simon, Meerburg, P. Daniel, Weniger, Christoph, Witte, Samuel J.
Publikováno v:
MNRAS 525 (2023) 6097-6111
Cosmic Dawn (CD) and Epoch of Reionization (EoR) are epochs of the Universe which host invaluable information about the cosmology and astrophysics of X-ray heating and hydrogen reionization. Radio interferometric observations of the 21-cm line at hig
Externí odkaz:
http://arxiv.org/abs/2303.07339
Autor:
Gazagnes, Simon, Kalantar-Nayestanaki, Nasser, Messchendorp, Johan G., Regina, Jenny, Stockmanns, Tobias, Wilkinson, Michael H. F.
We present the LOcal Track Finder (LOTF) algorithm, a method that performs charged-particle trajectory reconstruction using the Straw Tube Tracker, one of the central trackers of the antiProton ANnihilation at DArmstadt (PANDA) detector. The algorith
Externí odkaz:
http://arxiv.org/abs/2301.10055