Zobrazeno 1 - 10
of 12 583
pro vyhledávání: '"Eftekhari, A."'
Autor:
Ibik, Adaeze L., Drout, Maria R., Gaensler, Bryan M., Scholz, Paul, Sridhar, Navin, Margalit, Ben, Law, Casey J., Clarke, Tracy E., Tendulkar, Shriharsh P., Michilli, Daniele, Eftekhari, Tarraneh, Bhardwaj, Mohit, Burke-Spolaor, Sarah, Chatterjee, Shami, Cook, Amanda M., Hessels, Jason W. T., Kirsten, Franz, Joseph, Ronniy C., Kaspi, Victoria M., Lazda, Mattias, Masui, Kiyoshi W., Nimmo, Kenzie, Pandhi, Ayush, Pearlman, Aaron B., Pleunis, Ziggy, Rafiei-Ravandi, Masoud, Shin, Kaitlyn, Smith, Kendrick M.
The identification of persistent radio sources (PRSs) coincident with two repeating fast radio bursts (FRBs) supports FRB theories requiring a compact central engine. However, deep non-detections in other cases highlight the diversity of repeating FR
Externí odkaz:
http://arxiv.org/abs/2409.11533
Autor:
de Wet, Simon, Laskar, Tanmoy, Groot, Paul J., Duran, Rodolfo Barniol, Berger, Edo, Bhandari, Shivani, Eftekhari, Tarraneh, Guidorzi, C., Kobayashi, Shiho, Perley, Daniel A., Sari, Re'em, Schroeder, Genevieve
We present X-ray to radio frequency observations of the bright long gamma-ray burst GRB 210702A. Our ALMA 97.5 GHz observations show a significant rebrightening by a factor of ~2 beginning at 8.2 days post-burst and rising to peak brightness at 18.1
Externí odkaz:
http://arxiv.org/abs/2408.14641
Autor:
Hajela, A., Alexander, K. D., Margutti, R., Chornock, R., Bietenholz, M., Christy, C. T., Stroh, M., Terreran, G., Saxton, R., Komossa, S., Bright, J. S., Ramirez-Ruiz, E., Coppejans, D. L., Leung, J. K., Cendes, Y., Wiston, E., Laskar, T., Horesh, A., Schroeder, G., J., Nayana A., Wieringa, M. H., Velez, N., Berger, E., Blanchard, P. K., Eftekhari, T., Gomez, S., Nicholl, M., Sears, H., Zauderer, B. A.
We present the results from an extensive follow-up campaign of the Tidal Disruption Event (TDE) ASASSN-15oi spanning $\delta t \sim 10 - 3000$ d, offering an unprecedented window into the multiwavelength properties of a TDE during its first $\approx
Externí odkaz:
http://arxiv.org/abs/2407.19019
Autor:
Schroeder, Genevieve, Fong, Wen-fai, Kilpatrick, Charles D., Escorial, Alicia Rouco, Laskar, Tanmoy, Nugent, Anya E., Rastinejad, Jillian, Alexander, Kate D., Berger, Edo, Brink, Thomas G., Chornock, Ryan, de Bom, Clecio R., Dong, Yuxin, Eftekhari, Tarraneh, Filippenko, Alexei V., Fuentes-Carvajal, Celeste, Jacobson-Galan, Wynn V., Malkan, Matthew, Margutti, Raffaella, Pearson, Jeniveve, Rhodes, Lauren, Salinas, Ricardo, Sand, David J., Santana-Silva, Luidhy, Santos, Andre, Sears, Huei, Shrestha, Manisha, Smith, Nathan, Webb, Wayne, de Wet, Simon, Yang, Yi
We present multiwavelength observations of the Swift short $\gamma$-ray burst GRB 231117A, localized to an underlying galaxy at redshift $z = 0.257$ at a small projected offset ($\sim 2~$kpc). We uncover long-lived X-ray (Chandra) and radio/millimete
Externí odkaz:
http://arxiv.org/abs/2407.13822
Autor:
Gomez, Sebastian, Nicholl, Matt, Berger, Edo, Blanchard, Peter K., Villar, V. Ashley, Rest, Sofia, Hosseinzadeh, Griffin, Aamer, Aysha, Ajay, Yukta, Athukoralalage, Wasundara, Coulter, David C., Eftekhari, Tarraneh, Fiore, Achille, Franz, Noah, Fox, Ori, Gagliano, Alexander, Hiramatsu, Daichi, Howell, D. Andrew, Hsu, Brian, Karmen, Mitchell, Siebert, Matthew R., Könyves-Tóth, Réka, Kumar, Harsh, McCully, Curtis, Pellegrino, Craig, Pierel, Justin, Rest, Armin, Wang, Qinan
We present the most comprehensive catalog to date of Type I Superluminous Supernovae (SLSNe), a class of stripped envelope supernovae (SNe) characterized by exceptionally high luminosities. We have compiled a sample of 262 SLSNe reported through 2022
Externí odkaz:
http://arxiv.org/abs/2407.07946
Autor:
Dong, Y., Eftekhari, T., Fong, W., Bhandari, S., Berger, E., Ould-Boukattine, O. S., Hessels, J. W. T., Sridhar, N., Reines, A., Margalit, B., Darling, J., Gordon, A. C., Greene, J. E., Kilpatrick, C. D., Marcote, B., Metzger, B. D., Nimmo, K., Nugent, A. E., Paragi, Z., Williams, P. K. G.
Publikováno v:
ApJ 973 133 (2024)
We present 1 - 12 GHz Karl G. Jansky Very Large Array observations of 9 off-nuclear persistent radio sources (PRSs) in nearby (z < 0.055) dwarf galaxies, along with high-resolution European very-long baseline interferometry (VLBI) Network (EVN) obser
Externí odkaz:
http://arxiv.org/abs/2405.00784
Autor:
Christy, Collin T., Alexander, Kate D., Cendes, Yvette, Chornock, Ryan, Laskar, Tanmoy, Margutti, Raffaella, Berger, Edo, Bietenholz, Michael, Coppejans, Deanne, De Colle, Fabio, Eftekhari, Tarraneh, Holoien, Thomas W. -S., Matsumoto, Tatsuya, Miller-Jones, James C. A., Ramirez-Ruiz, Enrico, Saxton, Richard, van Velzen, Sjoert, Wieringa, Mark
We present detailed radio observations of the tidal disruption event (TDE) ASASSN-19bt/AT2019ahk, obtained with the Australia Telescope Compact Array (ATCA), the Atacama Large Millimeter/submillimeter Array (ALMA), and the MeerKAT radio telescopes, s
Externí odkaz:
http://arxiv.org/abs/2404.12431
Autor:
Eftekhari, T., Tchekhovskoy, A., Alexander, K. D., Berger, E., Chornock, R., Laskar, T., Margutti, R., Yao, Y., Cendes, Y., Gomez, S., Hajela, A., Pasham, D. R.
The tidal disruption event (TDE) AT2022cmc represents the fourth known example of a relativistic jet produced by the tidal disruption of a stray star providing a unique probe of the formation and evolution of relativistic jets in otherwise dormant su
Externí odkaz:
http://arxiv.org/abs/2404.10036
Publikováno v:
A&A 687, A156 (2024)
We present new H- and K-band spectroscopy for the bulge of M31, taken with the LUCI spectrograph at the Large Binocular Telescope (LBT). We studied radial trends of CO absorption features (namely, CO1.58, CO1.60, CO1.64, CO1.66, CO1.68, CO2.30, CO2.3
Externí odkaz:
http://arxiv.org/abs/2404.03448
Autor:
Mckinven, Ryan, Bhardwaj, Mohit, Eftekhari, Tarraneh, Kilpatrick, Charles D., Kirichenko, Aida, Pal, Arpan, Cook, Amanda M., Gaensler, B. M., Giri, Utkarsh, Kaspi, Victoria M., Michilli, Daniele, Nimmo, Kenzie, Pearlman, Aaron B., Pleunis, Ziggy, Sand, Ketan R., Stairs, Ingrid, Andersen, Bridget C., Andrew, Shion, Bandura, Kevin, Brar, Charanjot, Cassanelli, Tomas, Chatterjee, Shami, Curtin, Alice P., Dong, Fengqiu Adam, Eadie, Gwendolyn, Fonseca, Emmanuel, Ibik, Adaeze L., Kaczmarek, Jane F., Kharel, Bikash, Lazda, Mattias, Leung, Calvin, Li, Dongzi, Main, Robert, Masui, Kiyoshi W., Mena-Parra, Juan, Ng, Cherry, Pandhi, Ayush, Patil, Swarali Shivraj, Prochaska, J. Xavier, Rafiei-Ravandi, Masoud, Scholz, Paul, Shah, Vishwangi, Shin, Kaitlyn, Smith, Kendrick
Fast radio bursts (FRBs) last for milliseconds and arrive at Earth from cosmological distances. While their origin(s) and emission mechanism(s) are presently unknown, their signals bear similarities with the much less luminous radio emission generate
Externí odkaz:
http://arxiv.org/abs/2402.09304