Zobrazeno 1 - 10
of 491
pro vyhledávání: '"Andrè Nicolas"'
Autor:
Martín-Ravelo, Pablo, Gamen, Roberto, Arias, Julia I., Chené, André-Nicolas, Barbá, Rodolfo H.
Massive stars play a crucial role in the cosmic dynamics and chemical evolution of galaxies, however our understanding of their evolution and properties remains limited. An accurate determination of stellar parameters is essential for advancing our k
Externí odkaz:
http://arxiv.org/abs/2409.03205
Autor:
Richardson, Noel D., Daly, Andrea R., Williams, Peredur M., Hill, Grant M., Shenavrin, Victor I., Endo, Izumi, Chené, André-Nicolas, Karnath, Nicole, Lau, Ryan M., Moffat, Anthony F. J., Weigelt, Gerd
Several long-period binaries with a carbon-rich Wolf-Rayet star and an O star produce dust in their wind collisions. In eccentric binaries, this is seen most strongly near periastron passage. The exact conditions leading to dust creation require orbi
Externí odkaz:
http://arxiv.org/abs/2405.10454
Event detection in time series is a challenging task due to the prevalence of imbalanced datasets, rare events, and time interval-defined events. Traditional supervised deep learning methods primarily employ binary classification, where each time ste
Externí odkaz:
http://arxiv.org/abs/2311.15654
Autor:
Pavao, Clarissa M., Richardson, Noel D., Labadie-Bartz, Jonathan, Pablo, Herbert, Chené, André-Nicolas
Be X-ray binaries (Be XRBs) are high-mass X-ray binaries, with a neutron star or black hole orbiting and accreting material from a non-supergiant B-star that is rotating at a near critical rate. These objects are prime targets to understand past bina
Externí odkaz:
http://arxiv.org/abs/2311.00293
Event detection in time series data is crucial in various domains, including finance, healthcare, cybersecurity, and science. Accurately identifying events in time series data is vital for making informed decisions, detecting anomalies, and predictin
Externí odkaz:
http://arxiv.org/abs/2310.16485
Autor:
Barclay, Krister DG., Rosu, Sophie, Richardson, Noel D., Chené, André-Nicolas, St-Louis, Nicole, Ignace, Richard, Moffat, Anthony F. J.
The bright WN4 star EZ CMa exhibits a 3.77 day periodicity in photometry, spectroscopy, and polarimetry but the variations in the measurements are not strictly phase-locked, exhibiting changes in reference times, amplitudes, and the shape of the vari
Externí odkaz:
http://arxiv.org/abs/2310.15986
Roman Early-Definition Astrophysics Survey Opportunity: Galactic Roman Infrared Plane Survey (GRIPS)
Autor:
Paladini, Roberta, Zucker, Catherine, Benjamin, Robert, Nataf, David, Minniti, Dante, Zasowski, Gail, Peek, Joshua, Carey, Sean, Allen, Lori, Alonso-Garcia, Javier, Alves, Joao, Anders, Friederich, Athanassoula, Evangelie, Beers, Timothy C., Bird, Jonathan, Bland-Hwathorn, Joss, Brown, Anthony, Buder, Sven, Casagrande, Luca, Casey, Andrew, Cassisi, Santi, Catelan, Marcio, Chary, Ranga-Ram, Chene, Andre-Nicolas, Ciardi, David, Comeron, Fernando, Cohen, Roger, Dame, Thomas, Drimmel, Ronald, Trincado, Jose Fernandez, Finkbeiner, Douglas, Geisler, Douglas, Gennaro, Mario, Goodman, Alyssa, Green, Gregory, Hajdu, Gergely, Henderson, Calen, Hora, Joseph, Ivanov, Valentin D., Kirkpatrick, Davy, Kobayashi, Chiaki, Kuhn, Michael, Kunder, Andres, Lu, Jessica, Lucas, Philip W., Majaess, Daniel, Megeath, S. Thomas, Meisner, Aaron, Molinari, Sergio, Mroz, Przemek, Ness, Meliss, Neumayer, Nadine, Nogueras-Lara, Francisco, Noriega-Crespo, Alberto, Poleski, Radek, Rix, Hans-Walter, Rebull, Luisa, Reggiani, Henrique, Rejkuba, Marina, Saito, Roberto K., Schoenrich, Ralph, Saydjari, Andrew, Schisano, Eugenio, Schlafly, Edward, Schlaufman, Keving, Smith, Leigh, Speagle, Joshua, Wisz, Dan, Wyse, Rosemary, Zakamska, Nadia
A wide-field near-infrared survey of the Galactic disk and bulge/bar(s) is supported by a large representation of the community of Galactic astronomers. The combination of sensitivity, angular resolution and large field of view make Roman uniquely ab
Externí odkaz:
http://arxiv.org/abs/2307.07642
Autor:
Bhattacharya, Sayantan, Christodoulou, Dimitris M., Chene, Andre-Nicolas, Laycock, Silas G. T., Binder, Breanna A., Kazanas, Demosthenes
We present a statistical analysis of the He ii 4686 emission line in the spectra of the black hole and Wolf-Rayet (WR) star of the high-mass X-ray binary IC10 X-1. This line is visibly skewed, and the third moment (skewness) varies with the binary's
Externí odkaz:
http://arxiv.org/abs/2307.03281
Autor:
Bhattacharya, Sayantan, Laycock, Silas G. T., Chene, Andre-Nicolas, Binder, Breanna A., Christodoulou, Dimitris M., Roy, Ankur, Sorabella, Nicholas M., Cappallo, Rigel C.
IC 10 X-1 is an eclipsing high mass X-ray binary (HMXB) containing a stellar-mass black hole (BH) and a Wolf-Rayet (WR) donor star with an orbital period of P = 34.9 hr. This binary belongs to a group of systems that can be the progenitors of gravita
Externí odkaz:
http://arxiv.org/abs/2302.13984
Autor:
Richardson, Noel D., Pavao, Clarissa, Eldridge, Jan J., Pablo, Herbert, Chené, André-Nicolas, Wysocki, Peter, Gies, Douglas R., Younes, George, Hare, Jeremy
Ultra-stripped supernovae are different from other terminal explosions of massive stars, as they show little or no ejecta from the actual supernova event. They are thought to occur in massive binary systems after the exploding star has lost its surfa
Externí odkaz:
http://arxiv.org/abs/2302.00027