Zobrazeno 1 - 10
of 213
pro vyhledávání: '"Bosman, Sarah"'
Autor:
Iani, Edoardo, Rinaldi, Pierluigi, Caputi, Karina I., Annunziatella, Marianna, Langeroodi, Danial, Melinder, Jens, Pérez-González, Pablo G., Álvarez-Márquez, Javier, Boogaard, Leindert A., Bosman, Sarah E. I., Costantin, Luca, Moutard, Thibaud, Colina, Luis, Östlin, Göran, Greve, Thomas R., Wright, Gillian, Alonso-Herrero, Almudena, Bik, Arjan, Gillman, Steven, Gómez, Alejandro Crespo, Hjorth, Jens, Labiano, Alvaro, Pye, John P., Tikkanen, Tuomo V., van der Werf, Paul P.
We present Virgil, a MIRI extremely red object (MERO) detected with the F1000W filter as part of the MIRI Deep Imaging Survey (MIDIS) observations of the Hubble Ultra Deep Field (HUDF). Virgil is a Lyman-$\alpha$ emitter (LAE) at $z_{spec} = 6.6312\p
Externí odkaz:
http://arxiv.org/abs/2406.18207
The history of reionization reflects the cumulative injection of ionizing photons by sources and the absorption of ionizing photons by sinks. The latter process is traditionally described in terms of a "clumping factor" which encodes the average quad
Externí odkaz:
http://arxiv.org/abs/2406.18186
Autor:
Onorato, Silvia, Hennawi, Joseph F., Schindler, Jan-Torge, Yang, Jinyi, Wang, Feige, Barth, Aaron J., Bañados, Eduardo, Eilers, Anna-Christina, Bosman, Sarah E. I., Davies, Frederick B., Venemans, Bram P., Mazzucchelli, Chiara, Belladitta, Silvia, Vito, Fabio, Farina, Emanuele Paolo, Andika, Irham T., Fan, Xiaohui, Walter, Fabian, Decarli, Roberto, Onoue, Masafusa, Nanni, Riccardo
We present optical and near-infrared (NIR) spectroscopic observations for a sample of $45$ quasars at $6.50 < z \leq 7.64$ with absolute magnitudes at $1450$ {\AA} in the range $-28.82 \leq M_{1450} \leq -24.13$ and their composite spectrum. The medi
Externí odkaz:
http://arxiv.org/abs/2406.07612
Autor:
Decarli, Roberto, Loiacono, Federica, Farina, Emanuele Paolo, Dotti, Massimo, Lupi, Alessandro, Meyer, Romain A., Mignoli, Marco, Pensabene, Antonio, Strauss, Michael A., Venemans, Bram, Yang, Jinyi, Walter, Fabian, Wolf, Julien, Bañados, Eduardo, Blecha, Laura, Bosman, Sarah, Carilli, Chris L., Comastri, Andrea, Connor, Thomas, Costa, Tiago, Eilers, Anna-Christina, Fan, Xiaohui, Gilli, Roberto, Jun, Hyunsung D., Liu, Weizhe, Marshall, Madeline A., Mazzucchelli, Chiara, Neeleman, Marcel, Onoue, Masafusa, Overzier, Roderik, Pudoka, Maria Anne, Riechers, Dominik A., Rix, Hans-Walter, Schindler, Jan-Torge, Trakhtenbrot, Benny, Trebitsch, Maxime, Vestergaard, Marianne, Volonteri, Marta, Wang, Feige, Zhang, Huanian, Zou, Siwei
We present JWST/NIRSpec Integral Field Spectroscopy in the rest-frame optical bands of the system PJ308-21, a quasar at $z=6.2342$ caught as its host galaxy interacts with companion galaxies. We detect spatially extended emission of several emission
Externí odkaz:
http://arxiv.org/abs/2406.06697
Autor:
Zhu, Yongda, Becker, George D., Bosman, Sarah E. I., Cain, Christopher, Keating, Laura C., Nasir, Fahad, D'Odorico, Valentina, Bañados, Eduardo, Bian, Fuyan, Bischetti, Manuela, Bolton, James S., Chen, Huanqing, D'Aloisio, Anson, Davies, Frederick B., Davies, Rebecca L., Eilers, Anna-Christina, Fan, Xiaohui, Gaikwad, Prakash, Greig, Bradley, Haehnelt, Martin G., Kulkarni, Girish, Lai, Samuel, Puchwein, Ewald, Qin, Yuxiang, Ryan-Weber, Emma V., Satyavolu, Sindhu, Spina, Benedetta, Walter, Fabian, Wang, Feige, Wolfson, Molly, Yang, Jinyi
Recent quasar absorption line observations suggest that reionization may end as late as $z \approx 5.3$. As a means to search for large neutral hydrogen islands at $z<6$, we revisit long dark gaps in the Ly$\beta$ forest in VLT/X-Shooter and Keck/ESI
Externí odkaz:
http://arxiv.org/abs/2405.12275
Recent observations have positioned the endpoint of the Epoch of Reionisation (EoR) at redshift $z \sim 5.3$. However, observations of the Lyman-$\alpha$ forest have not yet been able to discern whether reionisation occurred slowly and late, with sub
Externí odkaz:
http://arxiv.org/abs/2405.12273
Autor:
Jiang, Linhua, Fu, Shuqi, Wang, Feige, Bosman, Sarah E. I., Cai, Zheng, Jun, Hyunsung D., Pan, Zhiwei, Sun, Fengwu, Yang, Jinyi, Zhang, Huanian
We present constraints on the spacetime variation of the fine-structure constant $\alpha$ at redshifts $3
Externí odkaz:
http://arxiv.org/abs/2405.08977
Autor:
Greig, Bradley, Mesinger, Andrei, Bañados, Eduardo, Becker, George D., Bosman, Sarah E. I., Chen, Huanqing, Davies, Frederick B., D'Odorico, Valentina, Eilers, Anna-Christina, Gallerani, Simona, Haehnelt, Martin G., Keating, Laura, Lai, Samuel, Qin, Yuxiang, Ryan-Weber, Emma, Satyavolu, Sindhu, Wang, Feige, Yang, Jinyi, Zhu, Yongda
The attenuation of Ly$\alpha$ photons by neutral hydrogen in the intergalactic medium (IGM) at $z\gtrsim5$ continues to be a powerful probe for studying the epoch of reionisation. Given a framework to estimate the intrinsic (true) Ly$\alpha$ emission
Externí odkaz:
http://arxiv.org/abs/2404.12585
Autor:
Sodini, Alessio, D'Odorico, Valentina, Salvadori, Stefania, Vanni, Irene, Bischetti, Manuela, Cupani, Guido, Davies, Rebecca, Becker, George D., Bañados, Eduardo, Bosman, Sarah, Davies, Frederick, Farina, Emanuele Paolo, Ferrara, Andrea, Keating, Laura, Kulkarni, Girish, Lai, Samuel, Ryan-Weber, Emma, Sebastian, Alma Maria, Walter, Fabian
Publikováno v:
A&A 687, A314 (2024)
This study explores the metal enrichment signatures attributed to the first generation of stars (PopIII) in the Universe, focusing on the E-XQR-30 sample. We aim to identify traces of Pop III metal enrichment by analyzing neutral gas in the interstel
Externí odkaz:
http://arxiv.org/abs/2404.10722
Autor:
Nasir, Fahad, Gaikwad, Prakash, Davies, Frederick B., Bolton, James S., Puchwein, Ewald, Bosman, Sarah E. I.
Unveiling the thermal history of the intergalactic medium (IGM) at $4 \leq z \leq 5$ holds the potential to reveal early onset HeII reionization or lingering thermal fluctuations from HI reionization. We set out to reconstruct the IGM gas properties
Externí odkaz:
http://arxiv.org/abs/2404.05794