Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Seligman, Darryl Z."'
Autor:
Taylor, Aster G., Steckloff, Jordan K., Seligman, Darryl Z., Farnocchia, Davide, Dones, Luke, Vokrouhlicky, David, Nesvorny, David, Micheli, Marco
So-called 'dark comets' are small, morphologically inactive near-Earth objects (NEOs) that exhibit nongravitational accelerations inconsistent with radiative effects. These objects exhibit short rotational periods (minutes to hours), where measured.
Externí odkaz:
http://arxiv.org/abs/2407.01839
Stellar flares are short-duration ($<$ hours) bursts of radiation associated with surface magnetic reconnection events. Stellar magnetic activity generally decreases as a function of both age and Rossby number, $R_0$, a measure of the relative import
Externí odkaz:
http://arxiv.org/abs/2405.00850
Autor:
Seligman, Darryl Z., Feinstein, Adina D., Lai, Dong, Welbanks, Luis, Taylor, Aster G., Becker, Juliette, Adams, Fred C., Morgan, Marvin, Bergner, Jennifer B.
Tidal heating on Io due to its finite eccentricity was predicted to drive surface volcanic activity, which was subsequently confirmed by the $\textit{Voyager}$ spacecrafts. Although the volcanic activity in Io is more complex, in theory volcanism can
Externí odkaz:
http://arxiv.org/abs/2311.01187
Autor:
Marčeta, Dušan, Seligman, Darryl Z.
The discovery of two interstellar objects passing through the Solar System, 1I/`Oumuamua and 2I/Borisov, implies that a galactic population exists with a spatial number density of order $\sim0.1$ au$^{-3}$. The forthcoming Rubin Observatory Legacy Su
Externí odkaz:
http://arxiv.org/abs/2310.17575
Autor:
Taylor, Aster G., Farnocchia, Davide, Vokrouhlicky, David, Seligman, Darryl Z., Steckloff, Jordan K., Micheli, Marco
Significant nonradial, nongravitational accelerations with magnitudes incompatible with radiation-driven effects have been reported in seven small, photometrically inactive near-Earth objects. Two of these objects exhibit large transverse acceleratio
Externí odkaz:
http://arxiv.org/abs/2310.02733
The non-detection of a coma surrounding 1I/`Oumuamua, the first discovered interstellar object (ISO), has prompted a variety of hypotheses to explain its nongravitational acceleration. Given that forthcoming surveys are poised to identify analogues o
Externí odkaz:
http://arxiv.org/abs/2309.11482
In this paper, we investigate the nonprincipal axis (NPA) rotational state of 1I/`Oumuamua -- the first interstellar object discovered traversing the inner Solar System -- from its photometric light curve. Building upon Mashchenko (2019), we develop
Externí odkaz:
http://arxiv.org/abs/2309.01820
Cosmic rays produced by young stellar objects can potentially alter the ionization structure, heating budget, chemical composition, and accretion activity in circumstellar disks. The inner edges of these disks are truncated by strong magnetic fields,
Externí odkaz:
http://arxiv.org/abs/2308.06650
Autor:
Levine, W. Garrett, Taylor, Aster G., Seligman, Darryl Z., Hoover, Devin J., Jedicke, Robert, Bergner, Jennifer B., Laughlin, Gregory P.
Interstellar small bodies are unique probes into the histories of exoplanetary systems. One hypothesized class of interlopers are "Jurads," exo-comets released into the Milky Way during the post-main sequence as the thermally-pulsing asymptotic giant
Externí odkaz:
http://arxiv.org/abs/2306.12464
A large fraction of white dwarfs (WDs) have metal-polluted atmospheres, which are produced by accreting material from remnant planetary systems. The composition of the accreted debris broadly resembles that of rocky Solar System objects. Volatile-enr
Externí odkaz:
http://arxiv.org/abs/2306.10102