Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Pearce, Tim D"'
Autor:
Franson, Kyle, Balmer, William O., Bowler, Brendan P., Pueyo, Laurent, Zhou, Yifan, Rickman, Emily, Zhang, Zhoujian, Mukherjee, Sagnick, Pearce, Tim D., Gagliuffi, Daniella C. Bardalez, Biddle, Lauren I., Brandt, Timothy D., Bowens-Rubin, Rachel, Crepp, Justin R., Davidson, Jr., James W., Faherty, Jacqueline, Ginski, Christian, Horch, Elliott P., Morgan, Marvin, Morley, Caroline V., Perrin, Marshall D., Sanghi, Aniket, Salama, Maissa, Theissen, Christopher A., Tran, Quang H., Wolf, Trevor N.
With a dynamical mass of $3 \, M_\mathrm{Jup}$, the recently discovered giant planet AF Lep b is the lowest-mass imaged planet with a direct mass measurement. Its youth and spectral type near the L/T transition make it a promising target to study the
Externí odkaz:
http://arxiv.org/abs/2406.09528
Autor:
Pearce, Tim D.
'Debris disks' are collections of small bodies around stars, such as the Asteroid Belt and Kuiper Belt in our Solar System. These disks are composed of objects smaller than planets, including asteroids, comets, dust, and dwarf planets. We detect debr
Externí odkaz:
http://arxiv.org/abs/2403.11804
Extrasolar debris disks are detected by observing dust, which is thought to be released during planetesimal collisions. This implies that planetesimals are dynamically excited ("stirred"), such that collisions are sufficiently common and violent. The
Externí odkaz:
http://arxiv.org/abs/2311.10461
Autor:
Pearce, Tim D., Krivov, Alexander V., Sefilian, Antranik A., Jankovic, Marija R., Löhne, Torsten, Morgner, Tobias, Wyatt, Mark C., Booth, Mark, Marino, Sebastian
Debris discs are our best means to probe the outer regions of planetary systems. Many studies assume that planets lie at the inner edges of debris discs, akin to Neptune and the Kuiper Belt, and use the disc morphologies to constrain those otherwise-
Externí odkaz:
http://arxiv.org/abs/2311.04265
Drastic changes in protoplanets' orbits could occur in the early stages of planetary systems through interactions with other planets and their surrounding protoplanetary or debris discs. The resulting planetary system could exhibit orbits with modera
Externí odkaz:
http://arxiv.org/abs/2309.06994
Autor:
Booth, Mark, Pearce, Tim D., Krivov, Alexander V., Wyatt, Mark C., Dent, William R. F., Hales, Antonio S., Lestrade, Jean-François, de Miera, Fernando Cruz-Sáenz, Faramaz, Virginie C., Löhne, Torsten, Chavez-Dagostino, Miguel
$\epsilon$ Eridani is the closest star to our Sun known to host a debris disc. Prior observations in the (sub-)millimetre regime have potentially detected clumpy structure in the disc and attributed this to interactions with an (as yet) undetected pl
Externí odkaz:
http://arxiv.org/abs/2303.13584
Autor:
Franson, Kyle, Bowler, Brendan P., Zhou, Yifan, Pearce, Tim D., Gagliuffi, Daniella C. Bardalez, Biddle, Lauren, Brandt, Timothy D., Crepp, Justin R., Dupuy, Trent J., Faherty, Jacqueline, Jensen-Clem, Rebecca, Morgan, Marvin, Sanghi, Aniket, Theissen, Christopher A., Tran, Quang H., Wolf, Trevor A.
We present the direct imaging discovery of a giant planet orbiting the young star AF Lep, a 1.2 $M_{\odot}$ member of the 24 $\pm$ 3 Myr $\beta$ Pic moving group. AF Lep was observed as part of our ongoing high-contrast imaging program targeting star
Externí odkaz:
http://arxiv.org/abs/2302.05420
Autor:
Pearce, Tim D., Kirchschlager, Florian, Rouillé, Gaël, Ertel, Steve, Bensberg, Alexander, Krivov, Alexander V., Booth, Mark, Wolf, Sebastian, Augereau, Jean-Charles
Excess near-infrared emission is detected around one fifth of main-sequence stars, but its nature is a mystery. These excesses are interpreted as thermal emission from populations of small, hot dust very close to their stars (`hot exozodis'), but suc
Externí odkaz:
http://arxiv.org/abs/2209.11219
When considering gaps in debris discs, a typical approach is to invoke clearing by an unseen planet within the gap, and derive the planet mass using Wisdom overlap or Hill radius arguments. However, this approach can be invalid if the disc is massive
Externí odkaz:
http://arxiv.org/abs/2203.03611
Autor:
Pearce, Tim D., Launhardt, Ralf, Ostermann, Robert, Kennedy, Grant M., Gennaro, Mario, Booth, Mark, Krivov, Alexander V., Cugno, Gabriele, Henning, Thomas K., Quirrenbach, Andreas, Barcucci, Arianna Musso, Matthews, Elisabeth C., Ruh, Henrik L., Stone, Jordan M.
We know little about the outermost exoplanets in planetary systems, because our detection methods are insensitive to moderate-mass planets on wide orbits. However, debris discs can probe the outer-planet population, because dynamical modelling of obs
Externí odkaz:
http://arxiv.org/abs/2201.08369