Zobrazeno 1 - 10
of 1 195
pro vyhledávání: '"Ghavamian, A."'
Near the center of the Puppis A SNR a series of nested optically emitting rings of high velocity ejecta (known as `the Swirl') were identified several decades ago by Winkler et al. (1989). To date no follow-up observations of these rings have been pu
Externí odkaz:
http://arxiv.org/abs/2310.00661
Long-term antibody response after the third dose of inactivated SARS-CoV-2 vaccine in MASLD patients
Autor:
Jin Cui, Lianbang Wang, Armin Ghavamian, Xuemei Li, Gongzheng Wang, Tao Wang, Min Huang, Qi Ru, Xinya Zhao
Publikováno v:
BMC Gastroenterology, Vol 24, Iss 1, Pp 1-10 (2024)
Abstract Background Metabolic dysfunction-associated steatotic liver disease (MASLD) patients are at an elevated risk of developing severe coronavirus disease 2019 (COVID-19). The objective of this study was to assess antibody responses and safety pr
Externí odkaz:
https://doaj.org/article/24bd28fc74d44c119e37638126d10a0b
Autor:
Raymond, John C., Ghavamian, Parviz, Bohdan, Artem, Ryu, Dongsu, Niemiec, Jacek, Sironi, Lorenzo, Tran, Aaron, Amato, Elena, Hoshino, Masahiro, Pohl, Martin, Amano, Takanobu, Fiuza, Federico
Collisionless shock waves in supernova remnants and the solar wind heat electrons less effectively than they heat ions, as is predicted by kinetic simulations. However, the values of T$_e$/T$_p$ inferred from the H alpha profiles of supernova remnant
Externí odkaz:
http://arxiv.org/abs/2303.08849
Autor:
Guest, Benson T., Borkowski, Kazimierz J., Ghavamian, Parviz, Petre, Robert, Picquenot, Adrien, Reynolds, Stephen P., Seitenzahl, Ivo R., Williams, Brian J.
The nature of Type Ia supernovae remains controversial. The youngest remnants of Ia supernovae hold clues to the explosion and to the immediate surroundings. We present a third epoch of Chandra observations of the $\sim600$-year-old Type Ia remnant 0
Externí odkaz:
http://arxiv.org/abs/2303.03456
Autor:
Guest, Benson T., Borkowski, Kazimierz J., Ghavamian, Parviz, Petre, Robert, Reynolds, Stephen P., Seitenzahl, Ivo R., Williams, Brian J.
We present a third epoch of Chandra observations of the Type Ia Large Magellanic Cloud Supernova remnant (SNR) 0509-67.5. With these new observations from 2020, the baseline for proper motion measurements of the expansion has grown to 20 years (from
Externí odkaz:
http://arxiv.org/abs/2210.02525
Autor:
Williams, Brian J., Ghavamian, Parviz, Seitenzahl, Ivo R., Reynolds, Stephen P., Borkowski, Kazimierz J., Petre, Robert
We perform an expansion study of the Balmer dominated outer shock of the SNR 0519$-$69.0 in the LMC by using a combination of new HST WFC3 imagery obtained in 2020 and archival ACS images from 2010 and 2011. Thanks to the very long time baseline, our
Externí odkaz:
http://arxiv.org/abs/2207.08724
Autor:
Temim, Tea, Slane, Patrick, Raymond, John C., Patnaude, Daniel, Murray, Emily, Ghavamian, Parviz, Renzo, Mathieu, Jacovich, Taylor
We present a study of the Galactic supernova remnant (SNR) G292.0+1.8, a classic example of a core-collapse SNR that contains oxygen-rich ejecta, circumstellar material, a rapidly moving pulsar, and a pulsar wind nebula (PWN). We use hydrodynamic sim
Externí odkaz:
http://arxiv.org/abs/2205.01798
Autor:
Guest, Benson T., Blair, William P., Borkowski, Kazimierz J., Ghavamian, Parviz, Hendrick, Sean P., Long, Knox S., Petre, Robert, Raymond, John C., Rest, Armin, Sankrit, Ravi, Seitenzahl, Ivo R., Williams, Brian J.
We present results from deep Chandra observations of the young Type Ia supernova remnant (SNR) 0509-68.7, also known as N103B, located in the Large Magellanic cloud (LMC). The remnant displays an asymmetry in brightness, with the western hemisphere a
Externí odkaz:
http://arxiv.org/abs/2201.04653
Publikováno v:
In Materials Today Communications June 2024 39
Autor:
Blair, William P., Ghavamian, Parviz, Raymond, John C., Williams, Brian J., Sankrit, Ravi., Long, Knox S., Winkler, P. Frank, Pirzkal, Norbert, Seitenzahl, Ivo. R.
We present HST/WFC3 multiband imagery of N103B, the remnant of a Type Ia supernova in the Large Magellanic Cloud, as well as HST/COS ultraviolet spectroscopy of the brightest radiatively shocked region. The images show a wide range of morphology and
Externí odkaz:
http://arxiv.org/abs/2008.12273