Results 61 to 70 of about 123,043 (207)

Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data

The Astronomical Journal
We present the results from the first two years of the Planet Hunters Next Generation Transit Survey (NGTS) citizen science project, which searches for transiting planet candidates in data from the NGTS by enlisting the help of members of the general ...
Sean M. O’Brien, Megan E. Schwamb, Samuel Gill, Christopher A. Watson, Matthew R. Burleigh, Alicia Kendall, Sarah L. Casewell, David R. Anderson, José I. Vines, James S. Jenkins, Douglas R. Alves, Laura Trouille, Solène Ulmer-Moll, Edward M. Bryant, Ioannis Apergis, Matthew Battley, Daniel Bayliss, Nora L. Eisner, Edward Gillen, Michael R. Goad, Maximilian N. Günther, Beth A. Henderson, Jeong-Eun Heo, David G. Jackson, Chris Lintott, James McCormac, Maximiliano Moyano, Louise D. Nielsen, Ares Osborn, Suman Saha, Ramotholo R. Sefako, Andrew W. Stephens, Rosanna H. Tilbrook, Stéphane Udry, Richard G. West, Peter J. Wheatley, Tafadzwa Zivave, See Min Lim, Arttu Sainio   +38 more
doaj   +1 more source

Migration and giant planet formation

, 2004
We extend the core-accretion model of giant gaseous planets by Pollack et al. (\cite{P96}) to include migration, disc evolution and gap formation. Starting with a core of a fraction of an Earth's mass located at 8 AU, we end our simulation with the onset
Alibert, Y., Benz, W., Mordasini, C.
core   +1 more source

Composition of giant planets: the roles of pebbles and planetesimals [PDF]

, 2023
Claudia Danti, Bertram Bitsch, Jingyi Mah   +2 more
openalex   +1 more source

Searching for GEMS: TOI-6383Ab, a Giant Planet Transiting an M3-dwarf Star in a Binary System

The Astronomical Journal
We report on the discovery of a transiting giant planet around the 3500 K M3-dwarf star TOI-6383A located 172 pc from Earth. It was detected by the Transiting Exoplanet Survey Satellite and confirmed by a combination of ground-based follow-up photometry ...
Lia Marta Bernabò, Shubham Kanodia, Caleb I. Cañas, William D. Cochran, Szilárd Csizmadia, Suvrath Mahadevan, Gudhmundur Stefánsson, Arvind F. Gupta, Andrew Monson, Henry A. Kobulnicky, Alexander K. Larsen, Ethan G. Cotter, Alexina Birkholz, Tera N. Swaby, Gregory Zeimann, Chad F. Bender, Scott A. Diddams, Jessica E. Libby-Roberts, Andrea S. J. Lin, Joe P. Ninan, Heike Rauer, Varghese Reji, Paul Robertson, Arpita Roy, Christian Schwab   +24 more
doaj   +1 more source

Metallicities of Planet Hosting Stars: A Sample of Giants and Subgiants

, 2010
This work presents a homogeneous derivation of atmospheric parameters and iron abundances for a sample of giant and subgiant stars which host giant planets, as well as a control sample of subgiant stars not known to host giant planets.
Arenou, Boss, Fischer, Ghezzi, Gonzalez, Gonzalez, Haywood, Ida, Johnson, K. Cunha, Kaufer, L. Ghezzi, Laughlin, Liu, Luck, Mashonkina, Mashonkina, Mashonkina, Natta, Niedzielski, Niedzielski, Niedzielski, Ramírez, Ramírez, S. C. Schuler, Sadakane, Santos, Sato, Sato, Sato, Sato, Schuler, Schuler, Takeda, Takeda, Takeda, V. V. Smith, Valenti, Valenti, Yi   +39 more
core   +1 more source

A New Database of Giant Impacts over a Wide Range of Masses and with Material Strength: A First Analysis of Outcomes

The Planetary Science Journal
In the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition,
Alexandre Emsenhuber, Erik Asphaug, Saverio Cambioni, Travis S. J. Gabriel, Stephen R. Schwartz, Robert E. Melikyan, C. Adeene Denton   +6 more
doaj   +1 more source

The influence of general-relativity effects, dynamical tides and collisions on planet-planet scattering close to the star

, 2019
Planet--Planet scattering is an efficient and robust dynamical mechanism for producing eccentric exoplanets. Coupled to tidal interactions with the central star, it can also explain close--in giant planets on circularized and potentially misaligned ...
Marzari, F., Nagasawa, M.
core   +1 more source

Planets Around the K-Giants BD+20 274 and HD 219415

, 2012
We present the discovery of planet-mass companions to two giant stars by the ongoing Penn State- Toru\'n Planet Search (PTPS) conducted with the 9.2 m Hobby-Eberly Telescope.
Adamów, M., Gettel, S., Maciejewski, G., Niedzielski, A., Nowak, G., Wolszczan, A., Zieliński, P.   +6 more
core   +1 more source

Accretion of ice giant planets from massive protoplanets whose migration is blocked by Jupiter and Saturn [PDF]

, 2023
G. Benedetti-Rossi, R. C. Ribeiro, O. C. Winter, H. S. Gaspar, E. Vieira Neto   +4 more
openalex   +1 more source

Revising the Giant Planet Mass–Metallicity Relation: Deciphering the Formation Sequence of Giant Planets

The Astrophysical Journal
The rate at which giant planets accumulate solids and gas is a critical component of planet formation models, yet it is extremely challenging to predict from first principles.
Yayaati Chachan, Jonathan J. Fortney, Kazumasa Ohno, Daniel Thorngren, Ruth Murray-Clay   +4 more
doaj   +1 more source