Results 31 to 40 of about 10,029 (146)

Multiple Explanations for the Single Transit of KIC 5951458 Based on Radial Velocity Measurements Extracted with a Novel Matched-template Technique^∗ [PDF]

The Astronomical Journal, 2020
Abstract Planetary systems that show single-transit events are a critical pathway to increasing the yield of long-period exoplanets from transit surveys. From the primary Kepler mission, KIC 5951458 b (Kepler-456b) was thought to be a single-transit giant planet with an orbital period of 1310 days.
Paul A. Dalba, Benjamin Fulton, Howard Isaacson, Stephen R. Kane, Andrew W. Howard   +4 more
openaire   +3 more sources

Multiplicity of cool dwarfs

, 2013
International audienceMultiple systems have long been used to probe the origin and evolution of stars of all masses. Only in the past 10-15 years have such studies been extended to brown dwarfs and the lowest mass stars through binary surveys of both ...
B. Biler, Nguyen, D. C., C.H. Blake, B. Reipurth, J.G. Winters, Blake, C. H., Duchêne, G., Reipurth, B., T.J. Dupuy, N.R. Deacon, R.R. King, Zhang, Z. H., Biller, B., Winters, J. G., P.R. Allen, C. Davison, D.C. Nguyen, Nguyen, Duy Cuong,, Deacon, N. R., Kraus, A. L., Davison, C., King, R. R., N.M. Law, Geller, A. M., G. Duchêne, Z.H. Zhang, A.L. Kraus, A.M. Geller, Dupuy, T. J., Allen, P. R., Law, N. M.   +30 more
core   +1 more source

THE K2-ESPRINT PROJECT IV. A HOT JUPITER IN A PROGRADE ORBIT WITH A POSSIBLE STELLAR COMPANION

, 2018
We report on the detection and early characterization of a hot Jupiter in a three day orbit around K2-34 (EPIC 212110888), a metal-rich F-type star located in the K2 Cycle 5 field. Our follow-up campaign involves precise radial velocity (RV) measurements
Velasco, Sergio, Kuzuhara, Masayuki, Kudo, Tomoyuki, Takeda, Yoichi, Ribas, Ignasi, Ryu, Tsuguru, Kusakabe, Nobuhiko, Arranz, Jorge Prieto, Yu, Liang, Brandt, Timothy D., Sanchis-Ojeda, Roberto, Albrecht, Simon, Palle, Enric, Nowak, Grzegorz, Sato, Bun’ei, Hirano, Teruyuki, Fukui, Akihiko, Tamura, Motohide, Dai, Fei, Van Eylen, Vincent, Narita, Norio, Winn, Joshua Nathan   +21 more
core   +1 more source

The Dynamics, Structure, and Fate of a Young Cluster during Gas Dispersal: Hectoschelle, Chandra, Spitzer, and Gaia Observations of Cep OB3b [PDF]

, 2019
We present a study of the kinematics and structure of the Cep OB3b cluster based on new spectra obtained with the Hectoschelle spectrograph on the MMT and data from Spitzer, Chandra, and Gaia.

core   +1 more source

A NEW MULTI-BAND RADIAL VELOCITY TECHNIQUE FOR DETECTING EXOPLANETS AROUND ACTIVE STARS

The Astrophysical Journal, 2012
The radial velocity (RV) technique is one of the most efficient ways of detecting exoplanets. However, large RV jitters induced by starspots on an active star can inhibit detection of any exoplanet present or even lead to a false positive detection. This paper presents a new multi-band RV technique capable of substantially reducing starspot-induced RV ...
Bo Ma, Jian Ge
openaire   +1 more source

Merger types forming the Virgo cluster in recent gigayears

, 2018
International audienceContext. As our closest cluster-neighbor, the Virgo cluster of galaxies is intensely studied by observers to unravel the mysteries of galaxy evolution within clusters. At this stage, cosmological numerical simulations of the cluster
J. G. Sorce, Olchanski, Mark, Sorce, Jenny G., M. Olchanski   +3 more
core   +1 more source

Some stages of the development in the technique of the stellar radial velocity determination

Odessa Astronomical Publications, 2017
About some stages of the development in the technique of the stellar radial velocity ...
Panchuk, V. E., Yakshina, T. A
openaire   +2 more sources

The SEGUE Stellar Parameter Pipeline. 1. Description and Initial Validation Tests

, 2007
The authors describe the development and implementation of the SEGUE (Sloan Extension for Galactic Exploration and Understanding) Stellar Parameter Pipeline (SSPP).
/Texas U., Astron. Dept., /Heidelberg, Max Planck Inst. Astron., Rockosi, Constance M., Bailer-Jones, Coryn A.L., /Res. Sch. Astron. Astrophys., Weston Creek, Observ., /Lick, Koesterke, Lars, Norris, John e., Yanny, Brian, Allende Prieto, Carlos, Tech., /Texas, Sivarani, Thirupathi, Lee, Young Sun, Wilhelm, Ronald, Re Fiorentin, Paola, Beers, Timothy C., /Michigan State U. /Michigan State U., JINA, Astrophys., /Fermilab /Rensselaer Poly. /Harvard-Smithsonian Ctr.   +17 more
core  

The CORALIE survey for southern extra-solar planets II. The short-period planetary companions to HD 75289 and HD 130322

, 2000
. Doppler measurements from the highresolution CORALIE spectrometer of the stars HD 75289 and HD 130322 reveal 2 new extra-solar giant planets. They are the second and third planetary candidates discovered with CORALIE in less than 1 year, since its ...
S. Udry, D. Naef, M. Burnet, M. Mayor, N. C. Santos, B. Confino, F. Pepe, Udry Mayor Naef, D. Queloz   +8 more
core  

The Gaia-ESO Survey: Target selection of open cluster stars [PDF]

Context. The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey, conducted with the multi-object spectrograph Fibre Large Array Multi Element Spectrograph (FLAMES) on the Very Large Telescope (European Southern Observatory, ESO ...
Damiani, F., Jordi, C., Spagna, A., Bayo, A., Abbas, U., Randich, S., Jeffries, R.D., Vallenari, A., Hayes, C., Flaccomio, E., Magrini, L., Drew, J.E., Prisinzano, L., Vink, J.S., Hatztidimitriou, D., Bensby, T., Gonneau, A., Bragaglia, A., Costado, M., Bonito, R., Donati, P., Bergemann, M., Wright, N., Balaguer-Nunez, L., Heiter, U., Blomme, R., Jiménez-Esteban, F.M., Hourihane, A., Casamiquela, L., Gilmore, G., Friel, E.D., Cantat Gaudin, T., Smiljanic, R., Sacco, G., Caramazza, M., Jackson, R.J., Re Fiorentin, P., Pancino, E., Zaggia, S., Alfaro, E.J., Franciosini, E.   +40 more
core   +1 more source