Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Schuldt, Stefan"'
Autor:
Erickson, Sydney, Wagner-Carena, Sebastian, Marshall, Phil, Millon, Martin, Birrer, Simon, Roodman, Aaron, Schmidt, Thomas, Treu, Tommaso, Schuldt, Stefan, Shajib, Anowar, Venkatraman, Padma, Collaboration, The LSST Dark Energy Science
Strongly lensed quasars can be used to constrain cosmological parameters through time-delay cosmography. Models of the lens masses are a necessary component of this analysis. To enable time-delay cosmography from a sample of $\mathcal{O}(10^3)$ lense
Externí odkaz:
http://arxiv.org/abs/2410.10123
Autor:
Acebron, Ana, Grillo, Claudio, Suyu, Sherry H., Angora, Giuseppe, Bergamini, Pietro, Caminha, Gabriel B., Ertl, Sebastian, Mercurio, Amata, Nonino, Mario, Rosati, Piero, Wang, Han, Bolamperti, Andrea, Meneghetti, Massimo, Schuldt, Stefan, Vanzella, Eros
Overcoming both modeling and computational challenges, we present, for the first time, the extended surface-brightness distribution model of a strongly-lensed source in a complex galaxy-cluster-scale system. We exploit the high-resolution Hubble Spac
Externí odkaz:
http://arxiv.org/abs/2410.01883
Autor:
He, Zizhao, Li, Rui, Shu, Yiping, Tortora, Crescenzo, Er, Xinzhong, Canameras, Raoul, Schuldt, Stefan, Napolitano, Nicola R., N, Bharath Chowdhary, Chen, Qihang, Li, Nan, Feng, Haicheng, Deng, Limeng, Li, Guoliang, Koopmans, L. V. E., Dvornik, Andrej
Gravitationally strongly lensed quasars (SL-QSO) offer invaluable insights into cosmological and astrophysical phenomena. With the data from ongoing and next-generation surveys, thousands of SL-QSO systems can be discovered expectedly, leading to unp
Externí odkaz:
http://arxiv.org/abs/2409.17471
Autor:
Liu, Jialian, Wang, Xiaofeng, Andrade, Cristina, Duverne, Pierre-Alexandre, Zhang, Jujia, Li, Liping, Wang, Zhenyu, Navarete, Felipe, Reguitti, Andrea, Schuldt, Stefan, Cai, Yongzhi, Filippenko, Alexei V., Yang, Yi, Brink, Thomas G., Zheng, WeiKang, Esamdin, Ali, Iskandar, Abdusamatjan, Bai, Chunhai, Liu, Jinzhong, Li, Xin, Hu, Maokai, Li, Gaici, Li, Wenxiong, Ma, Xiaoran, Yan, Shengyu, Mo, Jun, Adami, Christophe, Akl, Dalya, Antier, Sarah, Broens, Eric, Ducoin, Jean-Grégoire, Elhosseiny, Eslam, Esposito, Thomas M., Freeberg, Michael, Gokulass, Priya, Hello, Patrice, Karpov, Sergey, Márquez, Isabel, Mašek, Martin, Pyshna, Oleksandra, Rajabov, Yodgor, Saint-Gelais, Denis, Serrau, Marc, Sokoliuk, Oleksii, Takey, Ali, Tanasan, Manasanun, Turpin, Damien
We present extensive photometric and spectroscopic observations of the nearby Type Ia supernova (SN) 2023wrk at a distance of about 40 Mpc. The earliest detection of this SN can be traced back to a few hours after the explosion. Within the first few
Externí odkaz:
http://arxiv.org/abs/2407.15768
Autor:
Wong, Kenneth C., Dux, Frédéric, Shajib, Anowar J., Suyu, Sherry H., Millon, Martin, Mozumdar, Pritom, Wells, Patrick R., Agnello, Adriano, Birrer, Simon, Buckley-Geer, Elizabeth J., Courbin, Frédéric, Fassnacht, Christopher D., Frieman, Joshua, Galan, Aymeric, Lin, Huan, Marshall, Philip J., Poh, Jason, Schuldt, Stefan, Sluse, Dominique, Treu, Tommaso
Publikováno v:
A&A 689, A168 (2024)
Time-delay cosmography is a powerful technique to constrain cosmological parameters, particularly the Hubble constant ($H_{0}$). The TDCOSMO collaboration is performing an ongoing analysis of lensed quasars to constrain cosmology using this method. I
Externí odkaz:
http://arxiv.org/abs/2406.02683
Autor:
Schuldt, Stefan, Canameras, Raoul, Andika, Irham T., Bag, Satadru, Melo, Alejandra, Shu, Yiping, Suyu, Sherry H., Taubenberger, Stefan, Grillo, Claudio
We have performed a systematic search for galaxy-scale strong lenses using Hyper Suprime-Cam imaging data, focusing on lenses in overdense environments. To identify these lens candidates, we exploit our neural network from HOLISMOKES VI, which is tra
Externí odkaz:
http://arxiv.org/abs/2405.20383
Autor:
More, Anupreeta, Canameras, Raoul, Jaelani, Anton T., Shu, Yiping, Ishida, Yuichiro, Wong, Kenneth C., Inoue, Kaiki Taro, Schuldt, Stefan, Sonnenfeld, Alessandro
Efficient algorithms are being developed to search for strong gravitational lens systems owing to increasing large imaging surveys. Neural networks have been successfully used to discover galaxy-scale lens systems in imaging surveys such as the Kilo
Externí odkaz:
http://arxiv.org/abs/2405.12975
Autor:
Bag, Satadru, Huber, Simon, Suyu, Sherry H., Arendse, Nikki, Andika, Irham Taufik, Canameras, Raoul, Kim, Alex, Linder, Eric, Lodha, Kushal, Melo, Alejandra, More, Anupreeta, Schuldt, Stefan, Shafieloo, Arman
Publikováno v:
A&A 691, A100 (2024)
Strongly gravitationally lensed supernovae (LSNe) are promising probes for providing absolute distance measurements using gravitational-lens time delays. Spatially unresolved LSNe offer an opportunity to enhance the sample size for precision cosmolog
Externí odkaz:
http://arxiv.org/abs/2404.15389
We report JWST/NIRSpec observations of a star-forming galaxy at $z=2.76$, MACSJ1149-WR1. We securely detect two temperature-sensitive auroral lines, [SIII]6312 (7.4$\sigma$) and [OII]7320+7331 doublets (10$\sigma$), and tentatively [NII]5755 ($2.3\si
Externí odkaz:
http://arxiv.org/abs/2404.10037
Autor:
Morishita, Takahiro, Stiavelli, Massimo, Grillo, Claudio, Rosati, Piero, Schuldt, Stefan, Trenti, Michele, Bergamini, Pietro, Boyett, Kristan N., Chary, Ranga-Ram, Leethochawalit, Nicha, Roberts-Borsani, Guido, Treu, Tommaso, Vanzella, Eros
We present deep JWST NIRSpec observations in the sightline of MACS J1149.5+2223, a massive cluster of galaxies at $z=0.54$. We report the spectroscopic redshift of 28 sources at $3
Externí odkaz:
http://arxiv.org/abs/2402.14084