Zobrazeno 1 - 10
of 592
pro vyhledávání: '"Welch, Brian"'
Autor:
Nabizadeh, Armin, Zackrisson, Erik, Lundqvist, Emma, Ricotti, Massimo, Park, Seyong, Welch, Brian, Diego, Jose M.
Observations of gravitationally lensed, high-mass stars at redshifts $\gtrsim1$ occasionally reveal spectral energy distributions that contain two components with different effective temperatures. Given that two separate stars are involved, it sugges
Externí odkaz:
http://arxiv.org/abs/2406.12607
Autor:
Welch, Brian, Rivera-Thorsen, T. Emil, Rigby, Jane, Hutchison, Taylor, Olivier, Grace M., Berg, Danielle A., Sharon, Keren, Dahle, Hakon, Owens, M. Riley, Bayliss, Matthew B., Khullar, Gourav, Chisholm, John, Hayes, Matthew, Kim, Keunho J.
We measure the gas-phase abundances of the elements He, N, O, Ne, S, Ar, and Fe in the Lyman-continuum emitting region of the Sunburst Arc, a highly magnified galaxy at redshift $z=2.37$. We detect the temperature-sensitive auroral lines [SII]$\lambd
Externí odkaz:
http://arxiv.org/abs/2405.06631
Autor:
Abdurro'uf, Larson, Rebecca L., Coe, Dan, Hsiao, Tiger Yu-Yang, Álvarez-Márquez, Javier, Gómez, Alejandro Crespo, Adamo, Angela, Bhatawdekar, Rachana, Bik, Arjan, Bradley, Larry D., Conselice, Christopher J., Dayal, Pratika, Diego, Jose M., Fujimoto, Seiji, Furtak, Lukas J., Hutchison, Taylor A., Jung, Intae, Killi, Meghana, Kokorev, Vasily, Mingozzi, Matilde, Norman, Colin, Resseguier, Tom, Ricotti, Massimo, Rigby, Jane R., Vanzella, Eros, Welch, Brian, Windhorst, Rogier A., Xu, Xinfeng, Zitrin, Adi
We present JWST/NIRSpec high-resolution spectroscopy G395H/F290LP of MACS0647-JD, a gravitationally lensed galaxy merger at $z=10.167$. The new spectroscopy, which is acquired for the two lensed images (JD1 and JD2), detects and resolves emission lin
Externí odkaz:
http://arxiv.org/abs/2404.16201
Autor:
Hsiao, Tiger Yu-Yang, Álvarez-Márquez, Javier, Coe, Dan, Gómez, Alejandro Crespo, Abdurro'uf, Dayal, Pratika, Larson, Rebecca L., Bik, Arjan, Blanco-Prieto, Carmen, Colina, Luis, Pérez-González, Pablo Guillermo, Costantin, Luca, Prieto-Jiménez, Carlota, Adamo, Angela, Bradley, Larry D., Conselice, Christopher J., Fujimoto, Seiji, Furtak, Lukas J., Hutchison, Taylor A., James, Bethan L., Jiménez-Teja, Yolanda, Jung, Intae, Kokorev, Vasily, Mingozzi, Matilde, Norman, Colin, Ricotti, Massimo, Rigby, Jane R., Sharon, Keren, Vanzella, Eros, Welch, Brian, Xu, Xinfeng, Zackrisson, Erik, Zitrin, Adi
JWST spectroscopy has revolutionized our understanding of galaxies in the early universe. Covering wavelengths up to $5.3\,{\rm \mu m}$, NIRSpec can detect rest-frame optical emission lines H$\alpha$ out to $z = 7$ and [O III] to $z = 9.5$. Observing
Externí odkaz:
http://arxiv.org/abs/2404.16200
Deep imaging of galaxy cluster fields have in recent years revealed tens of candidates for gravitationally lensed stars at redshifts $z\approx$ 1-6, and future searches are expected to reveal highly magnified stars from even earlier epochs. Multi-ban
Externí odkaz:
http://arxiv.org/abs/2404.10817
Autor:
Welch, Brian, Olivier, Grace M., Hutchison, Taylor A., Rigby, Jane R., Berg, Danielle A., Aravena, Manuel, Bayliss, Matthew B., Birkin, Jack E., Chapman, Scott C., Dahle, Håkon, Khullar, Gourav, Kim, Keunho J., Mahler, Guillaume, Malkan, Matthew A., Narayanan, Desika, Phadke, Kedar A., Sharon, Keren, Smith, J. D. T., Solimano, Manuel, Spilker, Justin S., Viera, Joaquin D., Vizgan, David
Using integrated spectra for two gravitationally lensed galaxies from the JWST TEMPLATES Early Release Science program, we analyze faint auroral lines, which provide direct measurements of the gas-phase chemical abundance. For the brighter galaxy, SG
Externí odkaz:
http://arxiv.org/abs/2401.13046
Autor:
Adamo, Angela, Bradley, Larry D., Vanzella, Eros, Claeyssens, Adélaïde, Welch, Brian, Diego, Jose M, Mahler, Guillaume, Oguri, Masamune, Sharon, Keren, Abdurro'uf, Hsiao, Tiger Yu-Yang, Xu, Xinfeng, Messa, Matteo, Lassen, Augusto E., Zackrisson, Erik, Brammer, Gabriel, Coe, Dan, Kokorev, Vasily, Ricotti, Massimo, Zitrin, Adi, Fujimoto, Seiji, Inoue, Akio K., Resseguier, Tom, Rigby, Jane R., Jiménez-Teja, Yolanda, Windhorst, Rogier A., Hashimoto, Takuya, Tamura, Yoichi
The Cosmic Gems arc is among the brightest and highly magnified galaxies observed at redshift $z\sim10.2$. However, it is an intrinsically UV faint galaxy, in the range of those now thought to drive the reionization of the Universe. Hitherto the smal
Externí odkaz:
http://arxiv.org/abs/2401.03224
Autor:
Hutchison, Taylor A., Welch, Brian D., Rigby, Jane R., Olivier, Grace M., Birkin, Jack E., Phadke, Kedar A., Khullar, Gourav, Rauscher, Bernard J., Sharon, Keren, Aravena, Manuel, Bayliss, Matthew B., Elicker, Lauren A., Kim, Seonwoo, Solimano, Manuel, Vieira, Joaquin D., Vizgan, David
We describe a custom outlier rejection algorithm for JWST/NIRSpec integral field spectroscopy. This method uses a layered sigma clipping approach that adapts clipping thresholds based upon the spatial profile of the science target. We find that this
Externí odkaz:
http://arxiv.org/abs/2312.12518
Autor:
Rigby, Jane R., Vieira, Joaquin D., Phadke, Kedar A., Hutchison, Taylor A., Welch, Brian, Cathey, Jared, Spilker, Justin S., Gonzalez, Anthony H., Adhikari, Prasanna, Aravena, M., Bayliss, Matthew B., Birkin, Jack E., Bursk, Emmy, Chapman, Scott C., Dahle, Håkon, Elicker, Lauren A., Fischer, Travis C., Florian, Michael K., Gladders, Michael D., Hayward, Christopher C., Hewald, Rose, Kettler, Lily A., Khullar, Gourav, Kim, Seonwoo, Law, David R., Mahler, Guillaume, Malhotra, Sangeeta, Murphy, Eric J., Narayanan, Desika, Olivier, Grace M., Rhoads, James E., Sharon, Keren, Solimano, Manuel, Thiruvengadam, Athish, Vizgan, David, Younker, Nikolas
This paper gives an overview of TEMPLATES, a JWST Early Release Science program that targeted four extremely bright, gravitationally lensed galaxies: two extremely dusty, two with low attenuation, as templates for galaxy evolution studies with JWST.
Externí odkaz:
http://arxiv.org/abs/2312.10465
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