Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Vikaeus, Anton"'
Autor:
Zackrisson, Erik, Hultquist, Adam, Kordt, Aron, Diego, José M., Nabizadeh, Armin, Vikaeus, Anton, Meena, Ashish Kumar, Zitrin, Adi, Volpato, Guglielmo, Lundqvist, Emma, Welch, Brian, Costa, Guglielmo, Windhorst, Rogier A.
Gravitational lensing may render individual high-mass stars detectable out to cosmological distances, and several extremely magnified stars have in recent years been detected out to redshifts $z\approx 6$. Here, we present Muspelheim, a model for the
Externí odkaz:
http://arxiv.org/abs/2312.09289
Autor:
Vikaeus, Anton, Zackrisson, Erik, Wilkins, Stephen, Nabizadeh, Armin, Kokorev, Vasily, Abdurrouf, Bradley, Larry D., Coe, Dan, Dayal, Pratika, Ricotti, Massimo
Standard models of structure formation allow us to predict the cosmic timescales relevant for the onset of star formation and the assembly history of galaxies at high redshifts ($z > 10$). The strength of the Balmer break represents a well-known diag
Externí odkaz:
http://arxiv.org/abs/2309.02504
Autor:
Wilkins, Stephen M., Lovell, Christopher C., Irodotou, Dimitrios, Vijayan, Aswin P., Vikaeus, Anton, Zackrisson, Erik, Caruana, Joseph, Stanway, Elizabeth R., Conselice, Christopher J., Seeyave, Louise T. C., Roper, William J., Chworowsky, Katherine, Finkelstein, Steven L.
With the successful launch and commissioning of JWST we are now able to routinely spectroscopically probe the rest-frame optical emission of galaxies at $z>6$ for the first time. Amongst the most useful spectral diagnostics used in the optical is the
Externí odkaz:
http://arxiv.org/abs/2305.18175
Autor:
Hsiao, Tiger Yu-Yang, Abdurro'uf, Coe, Dan, Larson, Rebecca L., Jung, Intae, Mingozzi, Matilde, Dayal, Pratika, Kumari, Nimisha, Kokorev, Vasily, Vikaeus, Anton, Brammer, Gabriel, Furtak, Lukas J., Adamo, Angela, Andrade-Santos, Felipe, Antwi-Danso, Jacqueline, Bradac, Marusa, Bradley, Larry D., Broadhurst, Tom, Carnall, Adam C., Conselice, Christopher J., Diego, Jose M., Donahue, Megan, Eldridge, Jan J., Fujimoto, Seiji, Henry, Alaina, Hernandez, Svea, Hutchison, Taylor A., James, Bethan L., Norman, Colin, Park, Hyunbae, Pirzkal, Norbert, Postman, Marc, Ricotti, Massimo, Rigby, Jane R., Vanzella, Eros, Welch, Brian, Wilkins, Stephen M., Windhorst, Rogier A., Xu, Xinfeng, Zackrisson, Erik, Zitrin, Adi
We present JWST/NIRSpec prism spectroscopy of MACS0647-JD, the triply-lensed $z \sim 11$ candidate discovered in HST imaging and spatially resolved by JWST imaging into two components A and B. Spectroscopy of component A yields a spectroscopic redshi
Externí odkaz:
http://arxiv.org/abs/2305.03042
Autor:
Hsiao, Tiger Yu-Yang, Coe, Dan, Abdurro'uf, Whitler, Lily, Jung, Intae, Khullar, Gourav, Meena, Ashish Kumar, Dayal, Pratika, Barrow, Kirk S. S., Santos-Olmsted, Lillian, Casselman, Adam, Vanzella, Eros, Nonino, Mario, Jimenez-Teja, Yolanda, Oguri, Masamune, Stark, Daniel P., Furtak, Lukas J., Zitrin, Adi, Adamo, Angela, Brammer, Gabriel, Bradley, Larry, Diego, Jose M., Zackrisson, Erik, Finkelstein, Steven L., Windhorst, Rogier A., Bhatawdekar, Rachana, Hutchison, Taylor A., Broadhurst, Tom, Dimauro, Paola, Andrade-Santos, Felipe, Eldridge, Jan J., Acebron, Ana, Avila, Roberto J., Bayliss, Matthew B., Benitez, Alex, Binggeli, Christian, Bolan, Patricia, Bradac, Marusa, Carnall, Adam C., Conselice, Christopher J., Donahue, Megan, Frye, Brenda, Fujimoto, Seiji, Henry, Alaina, James, Bethan L., Kassin, Susan, Kewley, Lisa, Larson, Rebecca L., Lauer, Tod, Law, David, Mahler, Guillaume, Mainali, Ramesh, McCandliss, Stephan, Nicholls, David, Pirzkal, Norbert, Postman, Marc, Rigby, Jane R., Ryan, Russell, Senchyna, Peter, Sharon, Keren, Shimizu, Ikko, Strait, Victoria, Tang, Mengtao, Trenti, Michele, Vikaeus, Anton, Welch, Brian
MACS0647$-$JD is a triply-lensed $z\sim11$ galaxy originally discovered with the Hubble Space Telescope. Here we report new JWST imaging, which clearly resolves MACS0647$-$JD as having two components that are either merging galaxies or stellar comple
Externí odkaz:
http://arxiv.org/abs/2210.14123
Autor:
Welch, Brian, Coe, Dan, Diego, Jose M., Zitrin, Adi, Zackrisson, Erik, Dimauro, Paola, Jimenez-Teja, Yolanda, Kelly, Patrick, Mahler, Guillaume, Oguri, Masamune, Timmes, F. X., Windhorst, Rogier, Florian, Michael, DeMink, S. E., Avila, Roberto J., Anderson, Jay, Bradley, Larry, Sharon, Keren, Vikaeus, Anton, McCandliss, Stephan, Bradac, Marusa, Rigby, Jane, Frye, Brenda, Toft, Sune, Strait, Victoria, Trenti, Michele, Sharma, Soniya, Andrade-Santos, Felipe, Broadhurst, Tom
Publikováno v:
Nature 603, 815-818 (2022)
Galaxy clusters magnify background objects through strong gravitational lensing. Typical magnifications for lensed galaxies are factors of a few but can also be as high as tens or hundreds, stretching galaxies into giant arcs. Individual stars can at
Externí odkaz:
http://arxiv.org/abs/2209.14866
Autor:
Welch, Brian, Coe, Dan, Zackrisson, Erik, de Mink, S. E., Ravindranath, Swara, Anderson, Jay, Brammer, Gabriel, Bradley, Larry, Yoon, Jinmi, Kelly, Patrick, Diego, Jose M., Windhorst, Rogier, Zitrin, Adi, Dimauro, Paola, Jimenez-Teja, Yolanda, Abdurro'uf, Nonino, Mario, Acebron, Ana, Andrade-Santos, Felipe, Avila, Roberto J., Bayliss, Matthew B., Benitez, Alex, Broadhurst, Tom, Bhatawdekar, Rachana, Bradac, Marusa, Caminha, Gabriel, Chen, Wenlei, Eldridge, Jan, Farag, Ebraheem, Florian, Michael, Frye, Brenda, Fujimoto, Seiji, Gomez, Sebastian, Henry, Alaina, Hsiao, Tiger Y. -Y, Hutchison, Taylor A., James, Bethan L., Joyce, Meridith, Jung, Intae, Khullar, Gourav, Larson, Rebecca L., Mahler, Guillaume, Mandelker, Nir, McCandliss, Stephan, Morishita, Takahiro, Newshore, Rosa, Norman, Colin, O'Connor, Kyle, Oesch, Pascal A., Oguri, Masamune, Ouichi, Masami, Postman, Marc, Rigby, Jane R., Ryan Jr., Russell E., Sharma, Soniya, Sharon, Keren, Strait, Victoria, Strolger, Louis-Gregory, Timmes, F. X., Toft, Sune, Trenti, Michele, Vanzella, Eros, Vikaeus, Anton
The gravitationally lensed star WHL0137-LS, nicknamed Earendel, was identified with a photometric redshift $z_{phot} = 6.2 \pm 0.1$ based on images taken with the Hubble Space Telescope. Here we present James Webb Space Telescope (JWST) Near Infrared
Externí odkaz:
http://arxiv.org/abs/2208.09007
Direct-collapse black holes (DCBHs) may be the seeds of the first quasars, over 200 of which have now been detected at $z > 6$ . The James Webb Space Telescope (JWST) could detect DCBHs in the near infrared (NIR) at $z \lesssim 20$ and probe the evol
Externí odkaz:
http://arxiv.org/abs/2205.14163
Autor:
Vikaeus, Anton, Zackrisson, Erik, Schaerer, Daniel, Visbal, Eli, Fransson, Emma, Malhotra, Sangeeta, Rhoads, James, Sahlén, Martin
Dark matter halos that reach the HI-cooling mass without prior star formation or external metal pollution represent potential sites for the formation of small - extremely faint - Population III galaxies at high redshifts. Gravitational lensing may in
Externí odkaz:
http://arxiv.org/abs/2107.01230
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 492, Issue 2, February 2020, Pages 1706 to 1712
The upcoming $\textit{James Webb Space Telescope}$ ($\textit{JWST}$) will allow observations of high-redshift galaxies at fainter detection levels than ever before, and $\textit{JWST}$ surveys targeting gravitationally lensed fields are expected to b
Externí odkaz:
http://arxiv.org/abs/1912.02201