Zobrazeno 1 - 10
of 20 344
pro vyhledávání: '"Zwart A."'
Autor:
Remillard, Ronald A., Hernanz, Margarita, Zand, Jean in 't, Ray, Paul S., Bonvicini, Valter, Brandt, Søren, Brandt, Terri, Carmona, Alex, Evangelista, Yuri, Franco, Daniel Alvarez, Froning, Cynthia, Galvez, Jose-Luis, De Geronimo, Gianluigi, Grim, Martin, Kalemci, Emrah, Kuiper, Lucien, Kuvvetli, Irfan, Maccarone, Thomas J., Nowosielski, Witold, Pasham, Dheeraj R. R., Patruno, Alessandro, Persyn, Steven C., Roming, Peter W. A., Santangelo, Andrea, Schanne, Stephane, Tenzer, Christoph, Wilson-Hodge, Colleen A., Zampa, Gianluigi, Zwart, Frans
The Wide Field Monitor (WFM) is one of the three instruments on the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X) mission, which was proposed in response to the NASA 2023 call for a probe class mission. The WFM is a
Externí odkaz:
http://arxiv.org/abs/2410.12015
Autor:
Cournoyer-Cloutier, Claude, Sills, Alison, Harris, William E., Polak, Brooke, Rieder, Steven, Andersson, Eric P., Appel, Sabrina M., Mac Low, Mordecai-Mark, McMillan, Stephen, Zwart, Simon Portegies
We study the evolution of populations of binary stars within massive cluster-forming regions. We simulate the formation of young massive star clusters within giant molecular clouds with masses ranging from 2 x 10$^{4}$ to 3.2 x 10$^{5}$ M$_{\odot}$.
Externí odkaz:
http://arxiv.org/abs/2410.07433
Autor:
Stoop, Mitchel, de Koter, Alex, Kaper, Lex, Brands, Sarah, Zwart, Simon Portegies, Sana, Hugues, Stoppa, Fiorenzo, Gieles, Mark, Mahy, Laurent, Shenar, Tomer, Guo, Difeng, Nelemans, Gijs, Rieder, Steven
Massive stars are predominantly born in stellar associations or clusters. Their radiation fields, stellar winds, and supernovae strongly impact their local environment. In the first few million years of a cluster's life, massive stars are dynamically
Externí odkaz:
http://arxiv.org/abs/2410.06255
Autor:
Stefansson, Gudmundur, Mahadevan, Suvrath, Winn, Joshua, Marcussen, Marcus, Kanodia, Shubham, Albrecht, Simon, Fitzmaurice, Evan, Mikulskitye, One, Cañas, Caleb, Espinoza-Retamal, Juan Ignacio, Zwart, Yiri, Krolikowski, Daniel, Hotnisky, Andrew, Robertson, Paul, Alvarado-Montes, Jaime A., Bender, Chad, Blake, Cullen, Callingham, Joe, Cochran, William, Delamer, Megan, Diddams, Scott, Dong, Jiayin, Fernandes, Rachel, Giovanazzi, Mark, Halverson, Samuel, Libby-Roberts, Jessica, Logsdon, Sarah E, McElwain, Michael, Ninan, Joe, Rajagopal, Jayadev, Reji, Varghese, Roy, Arpita, Schwab, Christian, Wright, Jason
Gaia astrometry of nearby stars is precise enough to detect the tiny displacements induced by substellar companions, but radial velocity data are needed for definitive confirmation. Here we present radial velocity follow-up observations of 28 M and K
Externí odkaz:
http://arxiv.org/abs/2410.05654
Protoplanetary disks surrounding young stars are the birth places of planets. Among them, transition disks with inner dust cavities of tens of au are sometimes suggested to host massive companions. Yet, such companions are often not detected. Some tr
Externí odkaz:
http://arxiv.org/abs/2410.02856
Autor:
Zwart, Simon F. Portegies
The Milky way Galaxy is brimming with free-floating objects, including stars, planets and planetesimals. For the purpose of this chapter, we define a free-floating object as a solid body that is not orbited by a considerably more massive body. A plan
Externí odkaz:
http://arxiv.org/abs/2409.19072
Autor:
Cournoyer-Cloutier, Claude, Karam, Jeremy, Sills, Alison, Zwart, Simon Portegies, Wilhelm, Maite
We simulate mergers between star clusters embedded within their natal giant molecular cloud. We extract initial conditions from cloud-scale simulations of cluster formation and introduce different prescriptions for primordial binaries. We find that s
Externí odkaz:
http://arxiv.org/abs/2409.13564
We use the stellar evolution code BPASS and the gravitational wave simulation code LEGWORK to simulate populations of compact binaries that may be detected by the in-development space-based gravitational wave (GW) detector LISA. Specifically, we simu
Externí odkaz:
http://arxiv.org/abs/2409.09159
Unlike the Solar System planets, thousands of smaller bodies beyond Neptune orbit the Sun on eccentric ($e >$ 0.1) and ($i>$ 3$^\circ$) orbits. While migration of the giant planets during the early stages of Solar System evolution can induce substant
Externí odkaz:
http://arxiv.org/abs/2409.03342
Autor:
Polak, Brooke, Mac Low, Mordecai-Mark, Klessen, Ralf S., Zwart, Simon Portegies, Andersson, Eric P., Appel, Sabrina M., Cloutier, Claude Cournoyer, Glover, Simon C. O., McMillan, Stephen L. W.
Mass segregation is seen in many star clusters, but whether massive stars form in the center of a cluster or migrate there dynamically is still debated. N-body simulations have shown that early dynamical mass segregation is possible when sub-clusters
Externí odkaz:
http://arxiv.org/abs/2408.14592