Results 91 to 100 of about 2,926,316 (134)

Searching for Free-floating Planets with TESS: Results from Sectors 61–65

The Astronomical Journal
Though free-floating planets (FFPs) may outpopulate their bound counterparts in the terrestrial-mass range, they remain one of the least explored exoplanet demographics.
Michelle Kunimoto, William DeRocco, Nolan Smyth, Steve Bryson, B. Scott Gaudi   +4 more
doaj   +1 more source

Prospects for Reconstructing the Free-floating Planet Mass Function at the Population Level with the Nancy Grace Roman Space Telescope

The Astronomical Journal
Free-floating planets comprise one of the most enigmatic populations of exoplanets in the Galaxy. Though ground-based observations point to a large abundance of these worlds, little is known about their origins and demographics.
William DeRocco, Samson A. Johnson, Farzaneh Zohrabi, Matthew T. Penny, Peter McGill   +4 more
doaj   +1 more source

Searching for extra-solar planets and probing the atmosphere of Bulge giant stars through gravitational microlensing

, 2005
International audienceA galactic microlensing effect occurs when a luminous object (the source) located in the Bulge of the Milky Way is temporarily magnified by an intervening star (the "microlens'') passing close to its line of sight.
Cassan, Arnaud
core   +2 more sources

The Persistent Missing Mass Problem in Planet Formation

The Astrophysical Journal Letters
Recent ground-based microlensing surveys suggest that our Galaxy may abound with small free-floating planets, potentially up to ∼21 such planets per star. We explore the implication of such possibility on the mass budget for planet formation.
Eve J. Lee, William DeRocco, Sam Hadden, B. Scott Gaudi   +3 more
doaj   +1 more source

Microlensing Constraints on the Stellar and Planetary Mass Functions

The Astronomical Journal
The mass function (MF) of isolated objects measured by microlensing consists of both a stellar and a planetary component. We compare the microlensing MFs of A. Gould et al. and T. Sumi et al. to other measurements of the MF. The abundance of brown dwarfs
Jennifer C. Yee, Scott J. Kenyon
doaj   +1 more source

A Fast Concentric-disk Contour Integration Method for Microlensing Limb-darkening Effect

The Astronomical Journal
Incorporating limb darkening is a computationally demanding step in contour-integration-based microlensing modeling. Conventional concentric-ring integration is incompatible with high-order quadrature schemes, limiting efficiency.
Suwei Wang
doaj   +1 more source

The WFIRST Exoplanet Microlensing Survey

, 2018
The Wide Field Infrared Survey Telescope (WFIRST) was the top ranked large space mission in the 2010 New Worlds, New Horizons decadal survey, and it was formed by merging the science programs of 3 different mission concepts, including the Microlensing ...
Cole, Andrew, Cassan, Arnaud, Bachelet, Etienne, Bennett, David P., Henderson, Calen B., Gelino, Christopher, Kalirai, Jason, Kane, Stephen, Bozza, Valerio, Coutures, Christian, Colon, Knicole, Grady, Kevin, Ciardi, David, Barry, Richard, Horne, Keith, Calchi Novati, Sebastiano, Fouque, Pascal, Barclay, Thomas, Beaulieu, Jean-Phillipe, Belini, Andrea, Kruk, Jeffrey, Bailey, Vanessa, Groff, Tyler, Anderson, Jay, Armus, Lee, Benford, Dominic J., Akeson, Rachel, Boyd, Padi, Kasdin, N. Jeremy, Dominik, Martin, Bhattacharya, Aparna, Gelino, Dawn, Carpenter, Kenneth   +32 more
core  

Exoplanet Biosignatures: Observational Prospects. [PDF]

Astrobiology, 2018
Fujii Y, Angerhausen D, Deitrick R, Domagal-Goldman S, Grenfell JL, Hori Y, Kane SR, Pallé E, Rauer H, Siegler N, Stapelfeldt K, Stevenson KB.   +11 more
europepmc   +1 more source

EXOPLANET MODULATION OF STELLAR CORONAL RADIO EMISSION. [PDF]

Astron J, 2018
Cohen O, Moschou SP, Glocer A, Sokolov IV, Mazeh T, Drake JJ, Garraffo C, Alvarado-GÓmez JD.   +7 more
europepmc   +1 more source

The frequency of snowline-region planets from four-years of OGLE-MOA-Wise second-generation microlensing. [PDF]

Mon Not R Astron Soc, 2016
Shvartzvald Y, Maoz D, Udalski A, Sumi T, Friedmann M, Kaspi S, Poleski R, Szymański MK, Skowron J, Kozłowski S, Wyrzykowski L, Mróz P, Pietrukowicz P, Pietrzyński G, Soszyński I, Ulaczyk K, Abe F, Barry RK, Bennett DP, Bhattacharya A, Bond IA, Freeman M, Inayama K, Itow Y, Koshimoto N, Ling CH, Masuda K, Fukui A, Matsubara Y, Muraki Y, Ohnishi K, Rattenbury NJ, Saito T, Sullivan DJ, Suzuki D, Tristram PJ, Wakiyama Y, Yonehara A.   +37 more
europepmc   +1 more source