Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Newsome, Megan"'
Autor:
Newsome, Megan, Arcavi, Iair, Howell, D. Andrew, McCully, Curtis, Terreran, Giacomo, Hosseinzadeh, Griffin, Dgany, Yael, Farah, Joseph, Faris, Sara, Padilla-Gonzalez, Estefania, Pellegrino, Craig, Andrews, Moira
Extreme coronal line emitters (ECLEs) are objects showing transient high-ionization lines in the centers of galaxies. They have been attributed to echoes of high-energy flares of ionizing radiation, such as those produced by tidal disruption events (
Externí odkaz:
http://arxiv.org/abs/2406.11972
Autor:
Shrestha, Manisha, Bostroem, K. Azalee, Sand, David J., Hosseinzadeh, Griffin, Andrews, Jennifer E., Dong, Yize, Hoang, Emily, Janzen, Daryl, Pearson, Jeniveve, Jencson, Jacob E., Lundquist, M. J., Mehta, Darshana, Ravi, Aravind P., Retamal, Nicolas Meza, Valenti, Stefano, Brown, Peter J., Jha, Saurabh W., Macrie, Colin, Hsu, Brian, Farah, Joseph, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Terreran, Giacomo, Kwok, Lindsey, Smith, Nathan, Schwab, Michaela, Martas, Aidan, Munoz, Ricardo R., Medina, Gustavo E., Li, Ting S., Diaz, Paula, Hiramatsu, Daichi, Tucker, Brad E., Wheeler, J. C., Wang, Xiaofeng, Zhai, Qian, Zhang, Jujia, Gangopadhyay, Anjasha, Yang, Yi, Gutierez, Claudia P.
We present high-cadence photometric and spectroscopic observations of supernova (SN) 2024ggi, a Type II SN with flash spectroscopy features which exploded in the nearby galaxy NGC 3621 at $\sim$7 Mpc. The light-curve evolution over the first 30 hours
Externí odkaz:
http://arxiv.org/abs/2405.18490
Autor:
Dong, Yize, Tsuna, Daichi, Valenti, Stefano, Sand, David J., Andrews, Jennifer E., Bostroem, K. Azalee, Hosseinzadeh, Griffin, Hoang, Emily, Jha, Saurabh W., Janzen, Daryl, Jencson, Jacob E., Lundquist, Michael, Mehta, Darshana, Ravi, Aravind P., Retamal, Nicolas E. Meza, Pearson, Jeniveve, Shrestha, Manisha, Bonanos, Alceste, Howell, D. Andrew, Smith, Nathan, Farah, Joseph, Hiramatsu, Daichi, Itagaki, Koichi, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Paraskeva, Emmanouela N., Pellegrino, Craig, Terreran, Giacomo, Haislip, Joshua, Kouprianov, Vladimir, Reichart, Daniel E.
We present photometric and spectroscopic observations of SN 2023fyq, a type Ibn supernova in the nearby galaxy NGC 4388 (D$\simeq$18~Mpc). In addition, we trace long-standing precursor emission at the position of SN 2023fyq using data from DLT40, ATL
Externí odkaz:
http://arxiv.org/abs/2405.04583
Autor:
Meza-Retamal, Nicolas, Dong, Yize, Bostroem, K. Azalee, Valenti, Stefano, Galbany, Lluis, Pearson, Jeniveve, Hosseinzadeh, Griffin, Andrews, Jennifer E., Sand, David J., Jencson, Jacob E., Janzen, Daryl, Lundquist, Michael J., Hoang, Emily T., Wyatt, Samuel, Brown, Peter J., Howell, D. Andrew, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Terreran, Giacomo, Kouprianov, Vladimir, Hiramatsu, Daichi, Jha, Saurabh W., Smith, Nathan, Haislip, Joshua, Reichart, Daniel E., Shrestha, Manisha, Rosales-Ortega, F. Fabián
We present comprehensive optical observations of SN~2021gmj, a Type II supernova (SN~II) discovered within a day of explosion by the Distance Less Than 40~Mpc (DLT40) survey. Follow-up observations show that SN~2021gmj is a low-luminosity SN~II (LL~S
Externí odkaz:
http://arxiv.org/abs/2401.04027
Autor:
Masterson, Megan, De, Kishalay, Panagiotou, Christos, Kara, Erin, Arcavi, Iair, Eilers, Anna-Christina, Frostig, Danielle, Gezari, Suvi, Grotova, Iuliia, Liu, Zhu, Malyali, Adam, Meisner, Aaron M., Merloni, Andrea, Newsome, Megan, Rau, Arne, Simcoe, Robert A., van Velzen, Sjoert
Most tidal disruption events (TDEs) are currently found in time-domain optical and soft X-ray surveys, both of which are prone to significant obscuration. The infrared (IR), however, is a powerful probe of dust-enshrouded environments, and hence, we
Externí odkaz:
http://arxiv.org/abs/2401.01403
Autor:
Faris, Sara, Arcavi, Iair, Makrygianni, Lydia, Hiramatsu, Daichi, Terreran, Giacomo, Farah, Joseph, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Pellegrino, Craig, Bostroem, K. Azalee, Abojanb, Wiam, Lam, Marco C., Tomasella, Lina, Brink, Thomas G., Filippenko, Alexei V., French, K. Decker, Clark, Peter, Graur, Or, Leloudas, Giorgos, Gromadzki, Mariusz, Anderson, Joseph P., Nicholl, Matt, Gutierrez, Claudia P., Kankare, Erkki, Inserra, Cosimo, Galbany, Luis, Reynolds, Thomas, Mattila, Seppo, Heikkila, Teppo, Wang, Yanan, Onori, Francesca, Wevers, Thomas, Charalampopoulos, Panos, Johansson, Joel
AT 2019azh is a H+He tidal disruption event (TDE) with one of the most extensive ultraviolet and optical datasets available to date. We present our photometric and spectroscopic observations of this event starting several weeks before and out to appr
Externí odkaz:
http://arxiv.org/abs/2312.03842
Autor:
Andrews, Jennifer E., Pearson, Jeniveve, Hosseinzadeh, Griffin, Bostroem, K. Azalee, Dong, Yize, Shrestha, Manisha, Jencson, Jacob E., Sand, David J., Valenti, S., Hoang, Emily, Janzen, Daryl, Lundquist, M. J., Meza, Nicolas, Wyatt, Samuel, Jha, Saurabh W., Simpson, Chris, Farah, Joseph, Gonzalez, Estefania Padilla, Howell, D. Andrew, McCully, Curtis, Newsome, Megan, Pellegrino, Craig, Terreran, Giacomo
We present high cadence optical and ultraviolet observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high ionization flash features of \ion{H}{1}, \ion{He}{2}, \ion{C}{4}, and \ion{N}{4} that disappear within the
Externí odkaz:
http://arxiv.org/abs/2310.16092
Autor:
Shrestha, Manisha, Pearson, Jeniveve, Wyatt, Samuel, Sand, David J., Hosseinzadeh, Griffin, Bostroem, K. Azalee, Andrews, Jennifer E., Dong, Yize, Hoang, Emily, Janzen, Daryl, Jencson, Jacob E., Lundquist, M. J., Mehta, Darshana, Retamal, 4 Nicolas Meza, Valenti, Stefano, Rastinejad, Jillian C., Daly, Phil, Porter, Dallan, Hinz, Joannah, Self, Skyler, Weiner, Benjamin, Williams, Grant G., Hiramatsu, Daichi, Howell, D. Andrew, McCully, Curtis, Gonzalez, Estefania Padilla, Pellegrino, Craig, Terreran, Giacomo, Newsome, Megan, Farah, Joseph, Itagaki, Koichi, Jha, Saurabh W., Kwok, Lindsey, Smith, Nathan, Schwab, Michaela, Rho, Jeonghee, Yang, Yi
We present high-cadence photometric and spectroscopic observations of SN~2023axu, a classical Type II supernova with an absolute $V$-band peak magnitude of $-16.5 \pm 0.1$ mag. SN~2023axu was discovered by the Distance Less Than 40 Mpc (DLT40) survey
Externí odkaz:
http://arxiv.org/abs/2310.00162
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