Results 51 to 60 of about 23,116,162 (197)

The mass-radius-luminosity-rotation relationship for M dwarf stars [PDF]

, 2016
NASA's future Transiting Exoplanet Survey Satellite (TESS) mission is expected to discover hundreds of terrestrial exoplanets orbiting around M dwarf stars, which will be nearby and amenable to detailed characterization.
Isaacson, H.T., DeFelippis, Daniel, Swift, J., Han, E., Muirhead, P.S.   +4 more
core   +1 more source

Chemical Links between a Young M-type T Tauri Star and Its Substellar Companion: Spectral Analysis and C/O Measurement of DH Tau A

The Astrophysical Journal
The chemical abundance measurements of host stars and their substellar companions provide a powerful tool to trace the formation mechanism of the planetary systems.
Neda Hejazi, Jerry W. Xuan, David R. Coria, Erica Sawczynec, Ian J. M. Crossfield, Paul I. Cristofari, Zhoujian Zhang, Maleah Rhem   +7 more
doaj   +1 more source

Activity-induced radial velocity variation of M dwarf stars

, 2012
Stellar magnetic activity manifests itself in a variety of ways including starspots-cool, dark regions on the stellar surface. Starspots can cause variations ('jitter') in spectral line-profiles which can mimic the radial velocity (RV) variations caused ...
Andersen, Jan Marie, Korhonen, Heidi Helena   +1 more
core   +1 more source

Stellar Atmospheric Parameters for Cool Dwarfs in Gaia Data Release 3

The Astrophysical Journal Supplement Series
We provide a catalog of atmospheric parameters for 1,806,921 cool dwarfs from Gaia Data Release 3 (DR3) that lie within the range covered by LAMOST cool dwarf spectroscopic parameters: 3200 K < T _eff < 4300 K, −0.8 < [M/H] < 0.2 dex, and 4.5 < log g < 5.
Cai-Xia Qu, A-Li Luo, Rui Wang, Hugh R. A. Jones, Bing Du, Xiang-Lei Chen, You-Fen Wang   +6 more
doaj   +1 more source

M dwarf stars in the light of (future) exoplanet searches

, 2013
We present a brief overview of a splinter session on M dwarf stars as planet hosts that was organized as part of the Cool Stars 17 conference. The session was devoted to reviewing our current knowledge of M dwarf stars and exoplanets in order to prepare ...
Helling, Ch., Hilton, E.~J., T.J. Henry, B. Rojas‐Ayala, X. Bonfils, A. Youdin, Rogers, L. A., Henry, T.~J., Rojas-Ayala, B., Lépine, S., Mann, A. W., Gaidos, E., Bonfils, X., E.J. Hilton, A.W. Mann, Hilton, E. J., L. A. Rogers, E. Gaidos, Ch. Helling, Rogers, L.~A., S. Lépine, Henry, T. J., Youdin, A., von Braun, K., K. von Braun, Mann, A.~W.   +25 more
core   +1 more source

CAST constraints on the axion-electron coupling [PDF]

, 2013
In non-hadronic axion models, which have a tree-level axion-electron interaction, the Sun produces a strong axion flux by bremsstrahlung, Compton scattering, and axiorecombination, the "BCA processes." Based on a new calculation of this flux, including ...
Barth, Klaus, Belov, A., Hoffmann, D.H.H., Eleftheriadis, Christos, Miller, David W., Zioutas, K., Franz, Jürgen, Englhauser, J., Franz, J., Lakic, B., Villar, J., Gninenko, Sergei, Vieira, Joaquin D., Papaevangelou, Thomas, Riege, H., Ferrer-Ribas, E., Liolios, Anastasios, Walckiers, L., Walckiers, Louis, Kotthaus, R., Eleftheriadis, C., Belov, Alexander, Stewart, L., Pivovaroff, Mike J., Ruz, Jaime, Gómez, Héctor, Villar, José A., Davenport, Martyn, Luzón, Gloria, Jacoby, J., Semertzidis, Y., Königsmann, K., Heinsius, Fritz-Herbert, Savvidis, Ilias, Beltran, Berta, Hasinoff, M.D., Jacoby, Joachim, Vieira, J., Hoffmann, Dieter H. H., Giomataris, I., Vogel, J., Collar, J.I., García, J. A., Hasinoff, Michael D., Miller, D.W., Pivovaroff, M., Lutz, Gerhard, Carmona, J., Jakovcic, K., Jakovčić, Kresimir, Galan, J., Irastorza, I.G., Liolios, A., García, J., Ljubičić, Ante, Redondo, Javier, Friedrich, P., Heinsius, F.H., Collar, Juan I., Giomataris, Ioanis, Englhauser, Jakob, Vogel, Julia K., Kang, Donghwa, Bräuninger, Heinrich, Lutz, G., Fanourakis, G., Dafni, T., Villar, J.A., Krčmar, Milica, Bräuninger, H., Raffelt, G., Friedrich, Peter, Carmona, José Manuel, Di Lella, Luigi, Riege, Hans, Davenport, M., Rodríguez, A., Geralis, Theodoros, Kang, D., Stewart, Laura, Savvidis, I., Vieira, J.D., Fischer, H., Ljubicic, A., Pivovaroff, M.J., Galán, Javier, Collar, J., Fanourakis, George, Beltran, B., Ferrer-Ribas, Ester, Kuster, M., Luzon, G., Carmona, J.M., Papaevangelou, T., Miller, D., Irastorza, Igor Garcia, Zioutas, Konstantin, Ruz, J., Irastorza, I., Garcia, J.A., Hoffmann, D., Fischer, Horst, Dafni, Theopisti, Kousouris, Konstantinos, Raffelt, Georg, Heinsius, F., Kousouris, K., Van Bibber, K., Vogel, J.K., Barth, K., Hasinoff, M., Redondo, J., Di Lella, L., Krcmar, M., Königsmann, Kay, Gninenko, S., Lakić, Biljana, Bibber, Karl van, Gomez, H., Geralis, T., Kotthaus, Rainer, Semertzidis, Yannis   +121 more
core   +1 more source

CARMENES M dwarf template library [Dataset]

, 2023
Light from celestial objects interacts with the molecules of the Earth's atmosphere, resulting in the production of telluric absorption lines in ground-based spectral data.
Montes, David, Pedraz, S., Béjar, V. J. S., Ribas, I.   +3 more
core   +1 more source

Separated Twins Or Just Siblings? A Multiplanet System Around An M Dwarf Including A Cool Sub-Neptune [PDF]

, 2023
We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 with twin sizes of 2.426 (+0.163)/(-0.157) and 2.167 (+0.130)/(-0.118) R ...
Harris, M., Winn, Joshua N., Seager, S., Guerrero, Natalia M., Stassun, K. G., Howell, Steve B., Charbonneau, David, Collins, Kevin I., Jenkins, J. M., Kristiansen, M. H. K., Law, N., Seager, Sara, Kristiansen, Martti H. K., Fűűrész, G., Jensen, Eric L. N., Charbonneau, D., Ting, Eric B., Dragomir, D., Collins, K. A., Briceño, C., Collins, Karen A., Briceno, César, Jensen, Eric L.N., Collins, K. I., Watanabe, David, Quinn, S. N., Guerrero, N. M., Ziegler, Carl Z, Lendl, Monika, Mann, Andrew W., Zhou, George, Jenkins, Jon M., Zhou, G., Furesz, Gábor, Schwarz, R. P., Osborn, Hugh P., Mireles, I., Ting, E. B., Schwarz, Richard P., Ricker, G. R., Law, Nicholas, Quinn, Samuel N., Ulmer-Moll, Solène, Ulmer-Moll, S., Mann, A. W., Winn, J. N., Stassun, Keivan G., Ricker, George R., Osborn, H. P., Bouchy, François, Mireles, Ismael, Bouchy, F., Dragomir, Diana, Vanderspek, Roland, Lendl, M., Howell, S. B., Ziegler, C., Watanabe, D., Vanderspek, R., Harris, Mallory   +59 more
core   +1 more source

Barley yellow dwarf epidemiology [PDF]

, 2006
Barley yellow dwarf (BYD) disease is induced by viruses that are vectored by aphids. The viruses infect grasses and cause severe damage on oats, barley and wheat worldwide.
Bisnieks, Maris
core   +1 more source

The Orbital Eccentricity–Radius Relation for Planets Orbiting M Dwarfs

The Astronomical Journal
The orbital eccentricity–radius relation for small planets is indicative of the predominant dynamical sculpting processes during late-stage orbital evolution. Previous studies have shown that planets orbiting Sun-like stars exhibit an eccentricity–radius
Sheila Sagear, Sarah Ballard, Gregory J. Gilbert, Mariangel Albornoz, Christopher Lam   +4 more
doaj   +1 more source