Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Kumar, Sahana"'
Autor:
Pearson, Jeniveve, Sand, David J., Lundqvist, Peter, Galbany, Lluís, Andrews, Jennifer E., Bostroem, K. Azalee, Dong, Yize, Hoang, Emily, Hosseinzadeh, Griffin, Janzen, Daryl, Jencson, Jacob E., Lundquist, Michael J., Mehta, Darshana, Retamal, Nicolás Meza, Shrestha, Manisha, Valenti, Stefano, Wyatt, Samuel, Anderson, Joseph P., Ashall, Chris, Auchettl, Katie, Baron, Eddie, Blondin, Stéphane, Burns, Christopher R., Cai, Yongzhi, Chen, Ting-Wan, Chomiuk, Laura, Coulter, David A., Cross, Dane, Davis, Kyle W., de Jaeger, Thomas, DerKacy, James M., Desai, Dhvanil D., Dimitriadis, Georgios, Do, Aaron, Farah, Joseph R., Foley, Ryan J., Gromadzki, Mariusz, Gutiérrez, Claudia P., Haislip, Joshua, Hernández, Jonay I. González, Hinkle, Jason T., Hoogendam, Willem B., Howell, D. Andrew, Hoeflich, Peter, Hsiao, Eric, Huber, Mark E., Jha, Saurabh W., Palau, Cristina Jiménez, Kilpatrick, Charles D., Kouprianov, Vladimir, Kumar, Sahana, Kwok, Lindsey A., Larison, Conor, LeBaron, Natalie, Saux, Xavier Le, Lu, Jing, McCully, Curtis, Evans, Tycho Mera, Milne, Peter, Modjaz, Maryam, Morrell, Nidia, Müller-Bravo, Tomás E., Newsome, Megan, Nicholl, Matt, Gonzalez, Estefania Padilla, Payne, Anna V., Pellegrino, Craig, Phan, Kim, Pineda-García, Jonathan, Piro, Anthony L., Piscarreta, Lara, Polin, Abigail, Reichart, Daniel E., Rojas-Bravo, César, Ryder, Stuart D., Salmaso, Irene, Schwab, Michaela, Shahbandeh, Melissa, Shappee, Benjamin J., Siebert, Matthew R., Smith, Nathan, Strader, Jay, Taggart, Kirsty, Terreran, Giacomo, Tinyanont, Samaporn, Tucker, M. A., Valerin, Giorgio, Young, D. R.
We present optical, infrared, ultraviolet, and radio observations of SN 2022xkq, an underluminous fast-declining type Ia supernova (SN Ia) in NGC 1784 ($\mathrm{D}\approx31$ Mpc), from $<1$ to 180 days after explosion. The high-cadence observations o
Externí odkaz:
http://arxiv.org/abs/2309.10054
Autor:
Dong, Yize, Valenti, Stefano, Ashall, Chris, Williamson, Marc, Sand, David J., Van Dyk, Schuyler D., Jha, Saurabh W., Lundquist, Michael, Modjaz, Maryam, Andrews, Jennifer E., Jencson, Jacob E., Hosseinzadeh, Griffin, Pearson, Jeniveve, Kwok, Lindsey A., Boland, Teresa, Hsiao, Eric Y., Smith, Nathan, Elias-Rosa, Nancy, Srivastav, Shubham, Smartt, Stephen, Fulton, Michael, Zheng, WeiKang, Brink, Thomas G., Filippenko, Alexei V., Shahbandeh, Melissa, Bostroem, K. Azalee, Hoang, Emily, Janzen, Daryl, Mehta, Darshana, Meza, Nicolas, Shrestha, Manisha, Wyatt, Samuel, Auchettl, Katie, Burns, Christopher R., Farah, Joseph, Galbany, L., Gonzalez, Estefania Padilla, Haislip, Joshua, Hinkle, Jason T., Howell, D. Andrew, De Jaeger, Thomas, Kouprianov, Vladimir, Kumar, Sahana, Lu, Jing, McCully, Curtis, Moran, Shane, Morrell, Nidia, Newsome, Megan, Pellegrino, Craig, Polin, Abigail, Reichart, Daniel E., Shappee, B. J., Stritzinger, Maximilian D., Terreran, Giacomo, Tucker, M. A.
We present optical and near-infrared observations of SN~2022crv, a stripped envelope supernova in NGC~3054, discovered within 12 hrs of explosion by the Distance Less Than 40 Mpc Survey. We suggest SN~2022crv is a transitional object on the continuum
Externí odkaz:
http://arxiv.org/abs/2309.09433
Autor:
Uddin, Syed A., Burns, Christopher R., Phillips, Mark M., Suntzeff, Nicholas B., Freedman, Wendy L., Brown, Peter J., Morrell, Nidia, Hamuy, Mario, Krisciunas, Kevin, Wang, Lifan, Hsiao, Eric Y., Goobar, Ariel, Perlmutter, Saul, Lu, Jing, Stritzinger, Maximilian, Anderson, Joseph P., Ashall, Chris, Hoeflich, Peter, Shappee, Benjamin J., Persson, S. E., Piro, Anthony L., Baron, Eddie, Contreras, Carlos, Galbany, Lluís, Kumar, Sahana, Shahbandeh, Melissa, Davis, Scott, Anais, Jorge, Busta, Luis, Campillay, Abdo, Castellón, Sergio, Corco, Carlos, Diamond, Tiara, Gall, Christa, Gonzalez, Consuelo, Holmbo, Simon, Roth, Miguel, Serón, Jacqueline, Taddia, Francesco, Torres, Simón, Baltay, Charles, Folatelli, Gastón, Hadjiyska, Ellie, Kasliwal, Mansi, Nugent, Peter E., Rabinowitz, David, Ryder, Stuart D.
We present an analysis of Type Ia Supernovae (SNe~Ia) from both the Carnegie Supernova Project~I (CSP-I) and II (CSP-II), and extend the Hubble diagram from the optical to the near-infrared wavelengths ($uBgVriYJH$). We calculate the Hubble constant,
Externí odkaz:
http://arxiv.org/abs/2308.01875
Autor:
Desai, Dhvanil D., Ashall, Chris, Shappee, Benjamin J., Morrell, Nidia, Galbany, Lluís, Burns, Christopher R., DerKacy, James M., Hinkle, Jason T., Hsiao, Eric, Kumar, Sahana, Lu, Jing, Phillips, Mark M., Shahbandeh, Melissa, Stritzinger, Maximilian D., Baron, Eddie, Bersten, Melina C., Brown, Peter J., de Jaeger, Thomas, Elias-Rosa, Nancy, Folatelli, Gastón, Huber, Mark E., Mazzali, Paolo, Müller-Bravo, Tomás E., Piro, Anthony L., Polin, Abigail, Suntzeff, Nicholas B., Anderson, Joseph P., Chambers, Kenneth C., Chen, Ting-Wan, de Boer, Thomas, Fulton, Michael D., Gao, Hua, Gromadzki, Mariusz, Inserra, Cosimo, Magnier, Eugene A., Nicholl, Matt, Ragosta, Fabio, Wainscoat, Richard, Young, David R.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 524, Issue 1, September 2023, Pages 767-785
We present photometric and spectroscopic observations and analysis of SN 2021bxu (ATLAS21dov), a low-luminosity, fast-evolving Type IIb supernova (SN). SN 2021bxu is unique, showing a large initial decline in brightness followed by a short plateau ph
Externí odkaz:
http://arxiv.org/abs/2303.13581
Autor:
Lu, Jing, Hsiao, Eric Y., Phillips, Mark M., Burns, Christopher R., Ashall, Chris, Morrell, Nidia, Ng, Lawrence, Kumar, Sahana, Shahbandeh, Melissa, Hoeflich, Peter, Baron, E., Uddin, Syed, Stritzinger, Maximilian D., Suntzeff, Nicholas B., Baltay, Charles, Davis, Scott, Diamond, Tiara R., Folatelli, Gaston, Förster, Francisco, Gagné, Jonathan, Galbany, Lluís, Gall, Christa, González-Gaitán, Santiago, Holmbo, Simon, Kirshner, Robert P., Krisciunas, Kevin, Marion, G. H., Perlmutter, Saul, Pessi, Priscila J., Piro, Anthony L., Rabinowitz, David, Ryder, Stuart D., Sand, David J.
We present the largest and most homogeneous collection of near-infrared (NIR) spectra of Type Ia supernovae (SNe Ia): 339 spectra of 98 individual SNe obtained as part of the Carnegie Supernova Project-II. These spectra, obtained with the FIRE spectr
Externí odkaz:
http://arxiv.org/abs/2211.05998
Autor:
Kwok, Lindsey A., Jha, Saurabh W., Temim, Tea, Fox, Ori D., Larison, Conor, Camacho-Neves, Yssavo, Newman, Max J. Brenner, Pierel, Justin D. R., Foley, Ryan J., Andrews, Jennifer E., Badenes, Carles, Barna, Barnabas, Bostroem, K. Azalee, Deckers, Maxime, Flors, Andreas, Garnavich, Peter, Graham, Melissa L., Graur, Or, Hosseinzadeh, Griffin, Howell, D. Andrew, Hughes, John P., Johansson, Joel, Kendrew, Sarah, Kerzendorf, Wolfgang E., Maeda, Keiichi, Maguire, Kate, McCully, Curtis, O'Brien, John T., Rest, Armin, Sand, David J., Shahbandeh, Melissa, Strolger, Louis-Gregory, Szalai, Tamas, Ashall, Chris, Baron, E., Burns, Chris R., DerKacy, James M., Evans, Tyco Mera, Fisher, Alec, Galbany, Lluis, Hoeflich, Peter, Hsiao, Eric, de Jaeger, Thomas, Karamehmetoglu, Emir, Krisciunas, Kevin, Kumar, Sahana, Lu, Jing, Maund, Justyn, Mazzali, Paolo A., Medler, Kyle, Morrell, Nidia, Phillips, Mark. M., Shappee, Benjamin J., Stritzinger, Maximilian, Suntzeff, Nicholas, Telesco, Charles, Tucker, Michael, Wang, Lifan
Publikováno v:
ApJL, Volume 944 L3, 2023
We present JWST near- and mid-infrared spectroscopic observations of the nearby normal Type Ia supernova SN 2021aefx in the nebular phase at $+255$ days past maximum light. Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) o
Externí odkaz:
http://arxiv.org/abs/2211.00038
Autor:
Kumar, Sahana, Hsiao, Eric Y., Ashall, Chris, Phillips, Mark M., Morrell, Nidia, Hoeflich, Peter, Burns, Chris R., Galbany, Lluis, Baron, Eddie, Contreras, Carlos, Davis, Scott, Diamond, Tiara, Forster, Francisco, Graham, Melissa L., Karamehmetoglu, Emir, Kirshner, Robert P., Koribalski, Baerbel, Krisciunas, Kevin, Lu, Jing, Marion, G. H., Pessi, Priscila J., Piro, Anthony L., Shahbandeh, Melissa, Stritzinger, Maximillian D, Suntzeff, Nicholas B., Uddin, Syed A.
We present multi-wavelength time-series spectroscopy of SN 2013aa and SN 2017cbv, two Type Ia supernovae (SNe Ia) on the outskirts of the same host galaxy, NGC 5643. This work utilizes new nebular-phase near-infrared (NIR) spectra obtained by the Car
Externí odkaz:
http://arxiv.org/abs/2210.06993
Autor:
Aryan, Amar, Pandey, S. B., Zheng, WeiKang, Filippenko, Alexei V., Vinko, Jozsef, Ouchi, Ryoma, Brink, Thomas G., Halle, Andrew, Molloy, Jeffrey, Kumar, Sahana, Halevi, Goni, Kilpatrick, Charles D., Kumar, Amit, Gupta, Rahul, Ror, Amit Kumar
Publikováno v:
MNRAS.tmp.2225A (2022)
In this work, photometric and spectroscopic analyses of a very low-luminosity Type IIb supernova (SN) 2016iyc have been performed. SN 2016iyc lies near the faint end among the distribution of similar supernovae (SNe). Given lower ejecta mass ($M_{\rm
Externí odkaz:
http://arxiv.org/abs/2208.07377
Publikováno v:
Journal of the ASEAN Federation of Endocrine Societies, Vol 39, Iss 1 (2024)
A 23-year-old female presented with headache, palpitation, and hypertensive spells. There was no similar family history. Twenty-four (24) hour urine testing showed elevated normetanephrine level with normal metanephrines [metanephrines 123 mcg/24 hrs
Externí odkaz:
https://doaj.org/article/abf78ee0d29c42d2ab1a15e4f59e5db6
Autor:
Villafaña, Lizvette, Williams, Peter R., Treu, Tommaso, Brewer, Brendon J., Barth, Aaron J., U, Vivian, Bennert, Vardha N., Vogler, H. Alexander, Guo, Hengxiao, Bentz, Misty C., Canalizo, Gabriela, Filippenko, Alexei V., Gates, Elinor, Hamann, Frederick, Joner, Michael D., Malkan, Matthew A., Woo, Jong-Hak, Abolfathi, Bela, Abramson, L. E., Armen, Stephen F., Bae, Hyun-Jin, Bohn, Thomas, Boizelle, Benjamin D., Bostroem, Azalee, Brandel, Andrew, Brink, Thomas G., Channa, Sanyum, Cooper, M. C., Cosens, Maren, Donohue, Edward, Fillingham, Sean P., Gonzalez-Buitrago, Diego, Halevi, Goni, Halle, Andrew, Hood, Carol E., Horne, Keith, Horst, J. Chuck, de Kouchkovsky, Maxime, Kuhn, Benjamin, Kumar, Sahana, Leonard, Douglas C., Loveland, Donald, Manzano-King, Christina, McHardy, Ian, Michel, Raul, Olaes, Melanie Kae B., Park, Daeseong, Park, Songyoun, Pei, Liuyi, Ross, Timothy W., Runco, Jordan N., Samuel, Jenna, Sanchez, Javier, Scott, Bryan, Sexton, Remington O., Shin, Jaejin, Shivvers, Isaac, Spencer, Chance L., Stahl, Benjamin E., Stegman, Samantha, Stomberg, Isak, Valenti, Stefano, Walsh, Jonelle L., Yuk, Heechan, Zheng, WeiKang
We have modeled the velocity-resolved reverberation response of the H\b{eta} broad emission line in nine Seyfert 1 galaxies from the Lick Active Galactic Nucleus (AGN) Monitioring Project 2016 sample, drawing inferences on the geometry and structure
Externí odkaz:
http://arxiv.org/abs/2203.15000