Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Zhang, Jielai"'
Autor:
Freeburn, James, Cooke, Jeff, Möller, Anais, Dobie, Dougal, Zhang, Jielai, Salafia, Om Sharan, Siellez, Karelle, Auchettl, Katie, Goode, Simon, Abbott, Timothy M. C., Andreoni, Igor, Allen, Rebecca, Van Bemmel, Natasha, Webb, Sara
The relativistic outflows that produce Long GRBs (LGRBs) can be described by a structured jet model where prompt $\gamma$-ray emission is restricted to a narrow region in the jet's core. Viewing the jet off-axis from the core, a population of aftergl
Externí odkaz:
http://arxiv.org/abs/2405.11949
Autor:
Khrykin, Ilya S., Ata, Metin, Lee, Khee-Gan, Simha, Sunil, Huang, Yuxin, Prochaska, J. Xavier, Tejos, Nicolas, Bannister, Keith W., Cooke, Jeff, Day, Cherie K., Deller, Adam, Glowacki, Marcin, Gordon, Alexa C., James, Clancy W., Marnoch, Lachlan, Shannon, Ryan. M., Zhang, Jielai, Bernales-Cortes, Lucas
The dispersion measure of fast radio bursts (FRBs), arising from the interactions of the pulses with free electrons along the propagation path, constitutes a unique probe of the cosmic baryon distribution. Their constraining power is further enhanced
Externí odkaz:
http://arxiv.org/abs/2402.00505
Autor:
Liu, Qing, Abraham, Roberto G., Martin, Peter G., Bowman, William P., van Dokkum, Pieter, Janssens, Steven R., Chen, Seery, Keim, Michael A., Lokhorst, Deborah, Pasha, Imad, Shen, Zili, Zhang, Jielai
Unbiased sky background modeling is crucial for the analysis of deep wide-field images, but it remains a major challenge in low surface brightness astronomy. Traditional image processing algorithms are often designed to produce artificially flat back
Externí odkaz:
http://arxiv.org/abs/2306.07922
Autor:
Lee, Khee-Gan, Khrykin, Ilya S., Simha, Sunil, Ata, Metin, Huang, Yuxin, Prochaska, J. Xavier, Tejos, Nicolas, Cooke, Jeff, Nagamine, Kentaro, Zhang, Jielai
The repeating fast radio burst FRB20190520B is an anomaly of the FRB population thanks to its high dispersion measure (DM$=1205\,$pc/cc) despite its low redshift of $z_\mathrm{frb}=0.241$. This excess has been attributed to a large host contribution
Externí odkaz:
http://arxiv.org/abs/2306.05403
Autor:
Zhang, Jielai, Martin, Peter G, Cloutier, Ryan, Price-Jones, Natalie, Abraham, Roberto, van Dokkum, Pieter, Merritt, Allison
Publikováno v:
Jielai Zhang et al 2023 ApJ 948 4
Observations across the electromagnetic spectrum of radiative processes involving interstellar dust -- emission, extinction, and scattering -- are used to constrain the parameters of dust models and more directly to aid in foreground removal of dust
Externí odkaz:
http://arxiv.org/abs/2305.00756
Autor:
Simha, Sunil, Lee, Khee-Gan, Prochaska, J. Xavier, Khrykin, Ilya S., Huang, Yuxin, Tejos, Nicolas, Marnoch, Lachlan, Ata, Metin, Bernales, Lucas, Bhandari, Shivani, Cooke, Jeff, Deller, Adam T., Ryder, Suart, Zhang, Jielai
The FLIMFLAM survey is collecting spectroscopic data of field galaxies near fast radio burst (FRB) sightlines to constrain key parameters describing the distribution of matter in the Universe. In this work, we leverage the survey data to determine th
Externí odkaz:
http://arxiv.org/abs/2303.07387
Autor:
Andreoni, Igor, Coughlin, Michael W., Perley, Daniel A., Yao, Yuhan, Lu, Wenbin, Cenko, S. Bradley, Kumar, Harsh, Anand, Shreya, Ho, Anna Y. Q., Kasliwal, Mansi M., Postigo, Antonio de Ugarte, Sagues-Carracedo, Ana, Schulze, Steve, Kann, D. Alexander, Kulkarni, S. R., Sollerman, Jesper, Tanvir, Nial, Rest, Armin, Izzo, Luca, Somalwar, Jean J., Kaplan, David L., Ahumada, Tomas, Anupama, G. C., Auchettl, Katie, Barway, Sudhanshu, Bellm, Eric C., Bhalerao, Varun, Bloom, Joshua S., Bremer, Michael, Bulla, Mattia, Burns, Eric, Campana, Sergio, Chandra, Poonam, Charalampopoulos, Panos, Cooke, Jeff, D'Elia, Valerio, Das, Kaustav Kashyap, Dobie, Dougal, Fernández, José Feliciano Agüí, Freeburn, James, Fremling, Cristoffer, Gezari, Suvi, Goode, Simon, Graham, Matthew, Hammerstein, Erica, Karambelkar, Viraj R., Kilpatrick, Charles D., Kool, Erik C., Krips, Melanie, Laher, Russ R., Leloudas, Giorgos, Levan, Andrew, Lundquist, Michael J., Mahabal, Ashish A., Medford, Michael S., Miller, M. Coleman, Möller, Anais, Mooley, Kunal, Nayana, A. J., Nir, Guy, Pang, Peter T. H., Paraskeva, Emmy, Perley, Richard A., Petitpas, Glen, Pursiainen, Miika, Ravi, Vikram, Ridden-Harper, Ryan, Riddle, Reed, Rigault, Mickael, Rodriguez, Antonio C., Rusholme, Ben, Sharma, Yashvi, Smith, I. A., Stein, Robert D., Thöne, Christina, Tohuvavohu, Aaron, Valdes, Frank, van Roestel, Jan, Vergani, Susanna D., Wang, Qinan, Zhang, Jielai
Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes too close. TDEs provide a new window to study accretion onto SMBHs; in
Externí odkaz:
http://arxiv.org/abs/2211.16530
Autor:
Lokhorst, Deborah, Abraham, Roberto, Pasha, Imad, van Dokkum, Pieter, Chen, Seery, Miller, Tim, Danieli, Shany, Greco, Johnny, Zhang, Jielai, Merritt, Allison, Conroy, Charlie
We present the discovery of a giant cloud of ionized gas in the field of the starbursting galaxy M82. Emission from the cloud is seen in H$\alpha$ and [NII]$\lambda$6583 in data obtained though a small pathfinder instrument used to test the key ideas
Externí odkaz:
http://arxiv.org/abs/2203.04933
Autor:
Pasha, Imad, Lokhorst, Deborah, van Dokkum, Pieter G., Chen, Seery, Abraham, Roberto, Greco, Johnny, Danieli, Shany, Miller, Tim, Lippitt, Erin, Polzin, Ava, Shen, Zili, Keim, Michael A., Liu, Qing, Merritt, Allison, Zhang, Jielai
We identify a $\sim$600 pc-wide region of active star formation located within a tidal streamer of M82 via $H\alpha$ emission ($F_{H\alpha}\sim 6.5\times10^{-14}$ erg s$^{-1}$ cm$^{-2}$), using a pathfinder instrument based on the Dragonfly Telephoto
Externí odkaz:
http://arxiv.org/abs/2112.07052
Autor:
Liu, Qing, Abraham, Roberto, Gilhuly, Colleen, van Dokkum, Pieter, Martin, Peter G., Li, Jiaxuan, Greco, Johnny P., Lokhorst, Deborah, Chen, Seery, Danieli, Shany, Keim, Michael A., Merritt, Allison, Miller, Tim B., Pasha, Imad, Polzin, Ava, Shen, Zili, Zhang, Jielai
Uncertainty in the wide-angle Point Spread Function (PSF) at large angles (tens of arcseconds and beyond) is one of the dominant sources of error in a number of important quantities in observational astronomy. Examples include the stellar mass and sh
Externí odkaz:
http://arxiv.org/abs/2110.11598