Results 71 to 80 of about 21,714 (161)

First detection of exoplanet transits with the SAO RAS 1-m telescope

, 2020
© Pleiades Publishing, Ltd., 2015. We present the results of observations of single exoplanet transits conducted with the SAO RAS 1-m telescope. We studied two exoplanets with different eclipse depths: WASP-43b and WASP-104b.
Valyavin G., Moskvitin A., Galazutdinov G., Gadelshin D., Valeev A., Grauzhanina A.   +5 more
core  

Detection of Transits of Extrasolar Planets with GAIA

, 2002
Extensive simulations of planetary transits in the epoch photometry of the future space astrometry mission has been performed.
N. Robichon
core   +1 more source

Once in a blue moon: detection of ‘bluing’ during debris transits in the white dwarf WD 1145+017 [PDF]

, 2017
The first transiting planetesimal orbiting a white dwarf was recently detected in K2 data of WD 1145+017 and has been followed up intensively. The multiple, long and variable transits suggest the transiting objects are dust clouds, probably produced by a
Vanzi, L., S. Rengaswamy, Xu (许偲艺), S., M. C. P. Bours, S. Xu (许偲艺), N. Hallakoun, S. Sharma, L. Vanzi, Sharma, S., Bours, M.C.P., P. Kušnirák, S. G. Parsons, Gerard, N., Bours, M. C. P., Kucakova, H., Dhillon, V. S., Maoz, D., V. D. Ivanov, P. Kerry, Ivanov, V. D., Ivanov, V.D., Vanzi, Leonardo, T. R. Marsh, Dhillon, V.S., D. Maoz, Kusnirak, P., Arnold, C., N. Gerard, Su, K., Marsh, T. R.,  K. Su, Xu, S., Su,  K., Armstrong, J., V. S. Dhillon, H. Kučáková, Rengaswamy, S., P. Pravec, Hallakoun, N., Parsons, S. G., Armstrong, J. D., C. Arnold, Parsons, S.G., Marsh, T.R., Pravec, P., J. D. Armstrong, Armstrong, J.D., Kerry, P.   +47 more
core   +1 more source

A Multi-year Search for Transits of Proxima Centauri. I. Light Curves Corresponding to Published Ephemerides [PDF]

, 2018
Proxima Centauri has become the subject of intense study since the radial-velocity (RV) discovery by AngladaEscude et al. of a planet orbiting this nearby M dwarf every similar to 11.2. days. If Proxima Centauri.
Vladimir V. Kouprianov, Hart, Rhodes, Feliz, Dax, Graeme L. White, Kielkopf, John F., Karen A. Collins, Daniel E. Reichart, Relles, Howard, John F. Kielkopf, Christopher Stockdale, White, Graeme L., Haislip, Joshua B., Pennypacker, Carlton R., Peter Nelson, Stassun, Keivan G., Curtis, Ivan A., Keivan G. Stassun, Stockdale, Christopher, David L. Blank, Joshua B. Haislip, Blank, David L., Pennypacker, Carlton, Dax Feliz, Collins, Karen A., Bandupriya Jayawardene, Rhodes Hart, Carlton R. Pennypacker, Ivan A. Curtis, Nelson, Peter, Shankland, Paul, Howard Relles, Jayawardene, Bandupriya, Kouprianov, Vladimir V., Paul Shankland, Reichart, Daniel E.   +34 more
core   +1 more source

Parameter Estimation from the Transit Light Curve Including Gravitational Lensing Effects

The Astronomical Journal
We study transit light curves of exoplanets, incorporating gravitational lensing effects, and explore the possibility of estimating planetary masses using only the transit light curve.
Shinta Kasuya, Akihiko Fukui, Ayana Suzuki, Naomi Tsuji   +3 more
doaj   +1 more source

A Radon Transform Perspective on Exoplanet Transits

The Astronomical Journal
Transit light curves are usually analyzed under the assumption that the transiting planet has a circular sky-projected silhouette. However, planetary rotation, tides, rings, or atmospheric inhomogeneities can produce noncircular silhouettes.
Shotaro Tada
doaj   +1 more source

Origins of Super Jupiters: TOI-2145b has a Moderately Eccentric and Nearly Aligned Orbit

The Astronomical Journal
Super Jupiters are giant planets with several Jupiter masses. It remains an open question whether these planets originate with such high masses or grow through collisions.
Jiayin Dong, Ashley Chontos, George Zhou, Gudmundur Stefansson, Songhu Wang, Chelsea X. Huang, Arvind F. Gupta, Samuel Halverson, Shubham Kanodia, Jacob K. Luhn, Suvrath Mahadevan, Andrew Monson, Jaime A. Alvarado-Montes, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Jason T. Wright   +17 more
doaj   +1 more source

Hundreds of TESS Exoplanets Might Be Larger than We Thought

The Astrophysical Journal Letters
The radius of a planet is a fundamental parameter that probes its composition and habitability. Precise radius measurements are typically derived from the fraction of starlight blocked when a planet transits its host star.
Te Han, Paul Robertson, Timothy D. Brandt, Shubham Kanodia, Caleb Cañas, Avi Shporer, George Ricker, Corey Beard   +7 more
doaj   +1 more source

Differential Rotation of CoRoT Stars and a Kepler Binary Star from Starspot Transit Mapping

The Astrophysical Journal
While direct magnetic field measurements are rare for slowly rotating stars, spots observed during planetary transits provide a potential indicator of magnetic activity on stellar surfaces.
Adriana Valio, Alexandre Araújo, Fabian Menezes   +2 more
doaj   +1 more source

Transits of Venus, Solar Diameter and Sky Transparency

Astronomy
The transits of Venus occur in couples every 105/122 years: the observed ones were in 1639; 1761–1769; 1874–1882; and 2004–2012. The next couple will occur in the years 2117 and 2125.
Costantino Sigismondi, Andrea Brucato, Xiaofan Wang, Wenbin Xie, Anthony Ayiomamitis, Dong Wang   +5 more
doaj   +1 more source