Zobrazeno 1 - 10
of 126
pro vyhledávání: '"John Chisholm"'
Autor:
Hung Du, Srikanth Thudumu, Antonio Giardina, Rajesh Vasa, Kon Mouzakis, Li Jiang, John Chisholm, Sanat Bista
Publikováno v:
Journal of Big Data, Vol 10, Iss 1, Pp 1-19 (2023)
Abstract Recent technological advancements have led to a significant increase in digital documents. A document’s key information is generally represented by the keyphrases that provide the abstract description contained therein. With traditional ke
Externí odkaz:
https://doaj.org/article/f3f51ce7d01d4a2a91856c28a041550e
Autor:
O. Grace Telford, John Chisholm, Andreas A. C. Sander, Varsha Ramachandran, Kristen B. W. McQuinn, Danielle A. Berg
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 85 (2024)
Metal-poor massive stars drive the evolution of low-mass galaxies, both locally and at high redshift. However, quantifying the feedback they impart to their local surroundings remains uncertain because models of stellar evolution, mass loss, and ioni
Externí odkaz:
https://doaj.org/article/9e1ecd67f9a24a9790500e974a505aa6
Autor:
Anne E. Jaskot, Anneliese C. Silveyra, Anna Plantinga, Sophia R. Flury, Matthew Hayes, John Chisholm, Timothy Heckman, Laura Pentericci, Daniel Schaerer, Maxime Trebitsch, Anne Verhamme, Cody Carr, Henry C. Ferguson, Zhiyuan Ji, Mauro Giavalisco, Alaina Henry, Rui Marques-Chaves, Göran Östlin, Alberto Saldana-Lopez, Claudia Scarlata, Gábor Worseck, Xinfeng Xu
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 111 (2024)
JWST is uncovering the properties of ever-increasing numbers of galaxies at z > 6, during the epoch of reionization. Connecting these observed populations to the process of reionization requires understanding how efficiently they produce Lyman contin
Externí odkaz:
https://doaj.org/article/7daa608b1a984e2abd074d29079cb09a
Autor:
Anne E. Jaskot, Anneliese C. Silveyra, Anna Plantinga, Sophia R. Flury, Matthew Hayes, John Chisholm, Timothy Heckman, Laura Pentericci, Daniel Schaerer, Maxime Trebitsch, Anne Verhamme, Cody Carr, Henry C. Ferguson, Zhiyuan Ji, Mauro Giavalisco, Alaina Henry, Rui Marques-Chaves, Göran Östlin, Alberto Saldana-Lopez, Claudia Scarlata, Gábor Worseck, Xinfeng Xu
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 92 (2024)
To understand how galaxies reionized the Universe, we must determine how the escape fraction of Lyman continuum (LyC) photons ( f _esc ) depends on galaxy properties. Using the z ∼ 0.3 Low-redshift Lyman Continuum Survey (LzLCS), we develop and ana
Externí odkaz:
https://doaj.org/article/89f69a8c0fa54604ae755b37499ac601
Autor:
Danielle A. Berg, Evan D. Skillman, John Chisholm, Richard W. Pogge, Simon Gazagnes, Noah S. J. Rogers, Dawn K. Erb, Karla Z. Arellano-Córdova, Claus Leitherer, Jackie Appel, John Moustakas
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 87 (2024)
We investigate the stellar and nebular properties of nine H ii regions in the spiral galaxy M101 with far-ultraviolet (FUV; ∼900–2000 Å) and optical (∼3200–10,000 Å) spectra. We detect significant C iii ] λλ 1907,1909 nebular emission in
Externí odkaz:
https://doaj.org/article/e62210c1bbde45be9685e43a48858689
Autor:
Simon Gazagnes, Fergus Cullen, Valentin Mauerhofer, Ryan Begley, Danielle Berg, Jeremy Blaizot, John Chisholm, Thibault Garel, Floriane Leclercq, Ross J. McLure, Anne Verhamme
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 50 (2024)
We compare mock ultraviolet C ii and Si ii absorption and emission line features generated using a ∼10 ^9 M _⊙ virtual galaxy with observations of 131 z ∼ 3 galaxies from the vandels survey. We find that the mock spectra reproduce reasonably we
Externí odkaz:
https://doaj.org/article/09912ce698684934bc1fefba4b2749cc
Autor:
Karla Z. Arellano-Córdova, Danielle A. Berg, Matilde Mingozzi, Bethan L. James, Noah S. J. Rogers, Evan D. Skillman, Fergus Cullen, Ryan K. Alexander, Ricardo O. Amorín, John Chisholm, Matthew Hayes, Timothy Heckman, Svea Hernandez, Nimisha Kumari, Claus Leitherer, Crystal L. Martin, Michael Maseda, Themiya Nanayakkara, Kaelee Parker, Swara Ravindranath, Allison L. Strom, Fiorenzo Vincenzo, Aida Wofford
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 98 (2024)
To study the chemical evolution across cosmic epochs, we investigate Ne, S, Cl, and Ar abundance patterns in the Cosmic Origins Spectrograph Legacy Archive Spectroscopic SurveY (CLASSY). CLASSY comprises local star-forming galaxies (SFGs; 0.02 < z <
Externí odkaz:
https://doaj.org/article/d00a2aa8ef644c91a64ab475a7135366
Autor:
Alberto D. Bolatto, Rebecca C. Levy, Elizabeth Tarantino, Martha L. Boyer, Deanne B. Fisher, Serena A. Cronin, Adam K. Leroy, Ralf S. Klessen, J. D. Smith, Danielle A. Berg, Torsten Böker, Leindert A. Boogaard, Eve C. Ostriker, Todd A. Thompson, Juergen Ott, Laura Lenkić, Laura A. Lopez, Daniel A. Dale, Sylvain Veilleux, Paul P. van der Werf, Simon C. O. Glover, Karin M. Sandstrom, Evan D. Skillman, John Chisholm, Vicente Villanueva, Thomas S.-Y. Lai, Sebastian Lopez, Elisabeth A. C. Mills, Kimberly L. Emig, Lee Armus, Divakara Mayya, David S. Meier, Ilse De Looze, Rodrigo Herrera-Camus, Fabian Walter, Mónica Relaño, Hannah B. Koziol, Joshua Marvil, María J. Jiménez-Donaire, Paul Martini
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 63 (2024)
We present new observations of the central 1 kpc of the M82 starburst obtained with the James Webb Space Telescope near-infrared camera instrument at a resolution θ ∼ 0.″05–0.″1 (∼1–2 pc). The data comprises images in three mostly contin
Externí odkaz:
https://doaj.org/article/e772c3ae8f9a4c4fa39015d2240c0ae2
Autor:
Mattia Sirressi, Angela Adamo, Matthew Hayes, Thøger Emil Rivera-Thorsen, Alessandra Aloisi, Arjan Bik, Daniela Calzetti, John Chisholm, Andrew J. Fox, Michele Fumagalli, Kathryn Grasha, Svea Hernandez, Matteo Messa, Shannon Osborne, Göran Östlin, Elena Sabbi, Eva Schinnerer, Linda J. Smith, Christopher Usher, Aida Wofford
Publikováno v:
The Astronomical Journal, Vol 167, Iss 4, p 166 (2024)
We analyze the far-ultraviolet (1130−1770 Å rest frame) spectroscopy of 20 young (10 ^4 M _⊙ ) star clusters (YSCs) in 11 nearby star-forming galaxies. We probe the interstellar gas intervening along the line of sight, detecting several metal ab
Externí odkaz:
https://doaj.org/article/aea40f237e9645338634fc585bbb38d4
Autor:
Jorryt Matthee, Rohan P. Naidu, Gabriel Brammer, John Chisholm, Anna-Christina Eilers, Andy Goulding, Jenny Greene, Daichi Kashino, Ivo Labbe, Simon J. Lilly, Ruari Mackenzie, Pascal A. Oesch, Andrea Weibel, Stijn Wuyts, Mengyuan Xiao, Rongmon Bordoloi, Rychard Bouwens, Pieter van Dokkum, Garth Illingworth, Ivan Kramarenko, Michael V. Maseda, Charlotte Mason, Romain A. Meyer, Erica J. Nelson, Naveen A. Reddy, Irene Shivaei, Robert A. Simcoe, Minghao Yue
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 129 (2024)
Characterizing the prevalence and properties of faint active galactic nuclei (AGNs) in the early Universe is key for understanding the formation of supermassive black holes (SMBHs) and determining their role in cosmic reionization. We perform a spect
Externí odkaz:
https://doaj.org/article/281e2719ca694d0ba3610005b2e977cf