Zobrazeno 1 - 10
of 361
pro vyhledávání: '"Tuomi M"'
Autor:
Minniti D., Tuomi M., Jordán A., Arriagada P., Rojo P., Jones H.R.A., Jenkins J.S., Barnes J.R., Jeffers S.V., Pinfield D.
Publikováno v:
EPJ Web of Conferences, Vol 47, p 05002 (2013)
We present radial velocity results from our Red Optical Planet Survey (ROPS), aimed at detecting low-mass planets orbiting mid-late M dwarfs. The ∼10 ms−1 precision achieved over 2 consecutive nights with the MIKE spectrograph at Magellan Clay is
Externí odkaz:
https://doaj.org/article/095f05c676af412c97edb6c4ecb2541c
Autor:
Tuomi, M., Jones, H. R. A., Butler, R. P., Arriagada, P., Vogt, S. S., Burt, J., Laughlin, G., Holden, B., Shectman, S. A., Crane, J. D., Thompson, I., Keiser, S., Jenkins, J. S., Berdiñas, Z., Diaz, M., Kiraga, M., Barnes, J. R.
The most abundant stars in the Galaxy, M dwarfs, are very commonly hosts to diverse systems of low-mass planets. Their abundancy implies that the general occurrence rate of planets is dominated by their occurrence rate around such M dwarfs. In this a
Externí odkaz:
http://arxiv.org/abs/1906.04644
Autor:
Toledo-Padrón, B., Hernández, J. I. González, Rodríguez-López, C., Mascareño, A. Suárez, Rebolo, R., Butler, R. P., Ribas, I., Anglada-Escudé, G., Johnson, E. N., Reiners, A., Caballero, J. A., Quirrenbach, A., Amado, P. J., Béjar, V. J. S., Morales, J. C., Perger, M., Jeffers, S. V., Vogt, S., Teske, J., Shectman, S., Crane, J., Díaz, M., Arriagada, P., Holden, B., Burt, J., Rodríguez, E., Herrero, E., Murgas, F., Pallé, E., Morales, N., López-González, M. J., Alonso, E. Díez, Tuomi, M., Kiraga, M., Engle, S. G., Guinan, E. F., Strachan, J. B. P., Aceituno, F. J., Aceituno, J., Casanova, V. M., Martín-Ruiz, S., Montes, D., Ortiz, J. L., Sota, A., Briol, J., Barbieri, L., Cervini, I., Deldem, M., Dubois, F., Hambsch, F. -J., Harris, B., Kotnik, C., Logie, L., Lopez, J., McNeely, M., Ogmen, Y., Pérez, L., Rau, S., Rodríguez, D., Urquijo, F. S., Vanaverbeke, S.
The search for Earth-like planets around late-type stars using ultra-stable spectrographs requires a very precise characterization of the stellar activity and the magnetic cycle of the star, since these phenomena induce radial velocity (RV) signals t
Externí odkaz:
http://arxiv.org/abs/1812.06712
Autor:
Ribas, I., Tuomi, M., Reiners, A., Butler, R. P., Morales, J. C., Perger, M., Dreizler, S., Rodríguez-López, C., Hernández, J. I. González, Rosich, A., Feng, F., Trifonov, T., Vogt, S. S., Caballero, J. A., Hatzes, A., Herrero, E., Jeffers, S. V., Lafarga, M., Murgas, F., Nelson, R. P., Rodríguez, E., Strachan, J. B. P., Tal-Or, L., Teske, J., Toledo-Padrón, B., Zechmeister, M., Quirrenbach, A., Amado, P. J., Azzaro, M., Béjar, V. J. S., Barnes, J. R., Berdiñas, Z. M., Burt, J., Coleman, G., Cortés-Contreras, M., Crane, J., Engle, S. G., Guinan, E. F., Haswell, C. A., Henning, Th., Holden, B., Jenkins, J., Jones, H. R. A., Kaminski, A., Kiraga, M., Kürster, M., Lee, M. H., López-González, M. J., Montes, D., Morin, J., Ofir, A., Pallé, E., Rebolo, R., Reffert, S., Schweitzer, A., Seifert, W., Shectman, S. A., Staab, D., Street, R. A., Mascareño, A. Suárez, Tsapras, Y., Wang, S. X., Anglada-Escudé, G.
At a distance of 1.8 parsecs, Barnard's star (Gl 699) is a red dwarf with the largest apparent motion of any known stellar object. It is the closest single star to the Sun, second only to the alpha Centauri triple stellar system. Barnard's star is al
Externí odkaz:
http://arxiv.org/abs/1811.05955
Autor:
Barnes, J. R., Jeffers, S. V., Anglada-Escude, G., Haswell, C. A., Jones, H. R. A., Tuomi, M., Feng, F., Jenkins, J. S., Petit, P.
Accounting for stellar activity is a crucial component of the search for ever-smaller planets orbiting stars of all spectral types. We use Doppler imaging methods to demonstrate that starspot induced radial velocity variability can be effectively red
Externí odkaz:
http://arxiv.org/abs/1612.00906
Autor:
Dumusque, X., Borsa, F., Damasso, M., Diaz, R., Gregory, P. C., Hara, N. C., Hatzes, A., Rajpaul, V., Tuomi, M., Aigrain, S., Anglada-Escude, G., Bonomo, A. S., Boue, G., Dauvergne, F., Frustagli, G., Giacobbe, P., Haywood, R. D., Jones, H. R. A., Pinamonti, M., Poretti, E., Rainer, M., Segransan, D., Sozzetti, A., Udry, S.
Publikováno v:
A&A 598, A133 (2017)
Radial-velocity (RV) signals induce RV variations an order of magnitude larger than the signal created by the orbit of Earth-twins, thus preventing their detection. The goal of this paper is to compare the efficiency of the different methods used to
Externí odkaz:
http://arxiv.org/abs/1609.03674
The doppler measurements of stars are diluted and distorted by stellar activity noise. Different choices of noise models and statistical methods have led to much controversy in the confirmation of exoplanet candidates obtained through analysing radia
Externí odkaz:
http://arxiv.org/abs/1606.05196
Autor:
Jenkins, J. S., Jones, H. R. A., Tuomi, M., Díaz, M., Cordero, J. P., Aguayo, A., Pantoja, B., Arriagada, P., Mahu, R., Brahm, R., Rojo, P., Soto, M. G., Ivanyuk, O., Yoma, N. Becerra, Day-Jones, A. C., Ruiz, M. T., Pavlenko, Y. V., Barnes, J. R., Murgas, F., Pinfield, D. J., Jones, M. I., López-Morales, M., Shectman, S., Butler, R. P., Minniti, D.
We report the discovery of eight new giant planets, and updated orbits for four known planets, orbiting dwarf and subgiant stars using the CORALIE, HARPS, and MIKE instruments as part of the Calan-Hertfordshire Extrasolar Planet Search. The planets h
Externí odkaz:
http://arxiv.org/abs/1603.09391
Autor:
Hernán-Obispo, M., Tuomi, M., Gálvez-Ortiz, M. C., Golovin, A., Barnes, J. R., Jones, H. R. A., Kane, S. R., Pinfield, D., Jenkins, J. S., Petit, P., Anglada-Escudé, G., Marsden, S. C., Catalán, S., Jeffers, S. V., de Castro, E., Cornide, M., Garcés, A., Jones, M. I., Gorlova, N., Andreev, M.
This paper presents the simultaneous Bayesian analysis of the radial velocity and activity indices for the K5Ve active star BD+20 1790, that was proposed to host a close-in massive planet by Hern\'an-Obispo et al. (2010). The Bayesian analysis suppor
Externí odkaz:
http://arxiv.org/abs/1502.05223
Autor:
Lawler, S. M., Di Francesco, J., Kennedy, G. M., Sibthorpe, B., Booth, M., Vandenbussche, B., Matthews, B. C., Holland, W. S., Greaves, J., Wilner, D. J., Tuomi, M., Blommaert, J. A. D. L., de Vries, B. L., Dominik, C., Fridlund, M., Gear, W., Heras, A. M., Ivison, R., Olofsson, G.
$\tau$ Ceti is a nearby, mature G-type star very similar to our Sun, with a massive Kuiper Belt analogue (Greaves et al. 2004) and possible multiplanet system (Tuomi et al. 2013) that has been compared to our Solar System. We present Herschel Space O
Externí odkaz:
http://arxiv.org/abs/1408.2791