Zobrazeno 1 - 10
of 202
pro vyhledávání: '"Pollard, K R"'
Autor:
Holdsworth, D. L., Cunha, M. S., Kurtz, D. W., Antoci, V., Hey, D. R., Bowman, D. M., Kobzar, O., Buzasi, D. L., Kochukhov, O., Niemczura, E., Ozuyar, D., Shi, F., Szabó, R., Samadi-Ghadim, A., Bognár, Zs., Fox-Machado, L., Khalack, V., Lares-Martiz, M., Lovekin, C. C., Mikołajczyk, P., Mkrtichian, D., Pascual-Granado, J., Paunzen, E., Richey-Yowell, T., Sódor, Á., Sikora, J., Yang, T. Z., Brunsden, E., David-Uraz, A., Derekas, A., Hernández, A. García, Guzik, J. A., Hatamkhani, N., Handberg, R., Lambert, T. S., Lampens, P., Murphy, S. J., Monier, R., Pollard, K. R., Quitral-Manosalva, P., Ramón-Ballesta, A., Smalley, B., Stateva, I., Vanderspek, R.
We present the results of a systematic search for new rapidly oscillating Ap (roAp) stars using the 2-min cadence data collected by the Transiting Exoplanet Survey Satellite (TESS) during its Cycle 1 observations. We identify 12 new roAp stars. Among
Externí odkaz:
http://arxiv.org/abs/2105.13274
Autor:
Bergmann, C., Jones, M. I., Zhao, J., Mustill, A. J., Brahm, R., Torres, P., Wittenmyer, R. A., Gunn, F., Pollard, K. R., Zapata, A., Vanzi, L., Wang, Songhu
We present 63 new multi-site radial velocity measurements of the K1III giant HD 76920, which was recently reported to host the most eccentric planet known to orbit an evolved star. We focussed our observational efforts on the time around the predicte
Externí odkaz:
http://arxiv.org/abs/2102.08902
The prototype star for the {\gamma} Doradus class of pulsating variables was studied em- ploying photometric and spectroscopic observations to determine the frequencies and modes of pulsation. The four frequencies found were self-consistent between t
Externí odkaz:
http://arxiv.org/abs/1803.06890
Autor:
Bennett, D. P., Udalski, A., Han, C., Bond, I. A., Beaulieu, J. -P., Skowron, J., Gaudi, B. S., Koshimoto, N., Abe, F., Asakura, Y., Barry, R. K., Bhattacharya, A., Donachie, M., Evans, P., Fukui, A., Hirao, Y., Itow, Y., Li, M. C. A., Ling, C. H., Masuda, K., Matsubara, Y., Muraki, Y., Nagakane, M., Ohnishi, K., Oyokawa, H., Ranc, C., Rattenbury, N. J., Rosenthal, M. K., Saito, To., Sharan, A., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., Yonehara, A., Szymanski, M. K., Poleski, R., Soszynski, I., Ulaczyk, K., Wyrzykowski, L., DePoy, D., Gould, A., Pogge, R. W., Yee, J. C., Albrow, M. D., Bachelet, E., Batista, V., Bowens-Rubin, R., Brillant, S., Caldwell, J. A. R., Cole, A., Coutures, C., Dieters, S., Prester, D. Dominis, Donatowicz, J., Fouque, P., Horne, K., Hundertmark, M., Kains, N., Kane, S. R., Marquette, J. -B., Menzies, J., Pollard, K. R., Sahu, K. C., Wambsganss, J., Williams, A., Zub, M.
Publikováno v:
AJ, 155, 141 (2018)
We present the analysis of microlensing event MOA-2010-BLG-117, and show that the light curve can only be explained by the gravitational lensing of a binary source star system by a star with a Jupiter mass ratio planet. It was necessary to modify sta
Externí odkaz:
http://arxiv.org/abs/1707.09667
Autor:
Bennett, D. P., Rhie, S. H., Udalski, A., Gould, A., Tsapras, Y., Kubas, D., Bond, I. A., Greenhill, J., Cassan, A., Rattenbury, N. J., Boyajian, T. S., Luhn, J., Penny, M. T., Anderson, J., Abe, F., Bhattacharya, A., Botzler, C. S., Donachie, M., Freeman, M., Fukui, A., Hirao, Y., Itow, Y., Koshimoto, N., Li, M. C. A., Ling, C. H., Masuda, K., Matsubara, Y., Muraki, Y., Nagakane, M., Ohnishi, K., Oyokawa, H., Perrott, Y. C., Saito, To., Sharan, A., Sullivan, D. J., Sumi, T., Suzuki, D., Tristram, P. J., Yonehara, A., Yock, P. C. M., Szymanski, M. K., Soszynski, I., Ulaczyk, K., Wyrzykowski, L., Allen, W., DePoy, D., Gal-Yam, A., Gaudi, B. S., Han, C., Monard, I. A. G., Ofek, E., Pogge, R. W., Street, R. A., Bramich, D. M., Dominik, M., Horne, K., Snodgrass, C., Steele, I. A., Albrow, M. D., Bachelet, E., Batista, V., Beaulieu, J. -P., Brillant, S., Caldwell, J. A. R., Cole, A., Coutures, C., Dieters, S., Prester, D. Dominis, Donatowicz, J., Fouque, P., Hundertmark, M., Jorgensen, U. G., Kains, N., Kane, S. R., Marquette, J. -B., Menzies, J., Pollard, K. R., Ranc, C., Sahu, K. C., Wambsganss, J., Williams, A., Zub, M.
Publikováno v:
Astronomical Journal, 152, 125, 14 pp. (2016)
We present the analysis of the first circumbinary planet microlensing event, OGLE-2007-BLG-349. This event has a strong planetary signal that is best fit with a mass ratio of $q \approx 3.4\times10^{-4}$, but there is an additional signal due to an a
Externí odkaz:
http://arxiv.org/abs/1609.06720
Autor:
Kahraman-Alicavus, F., Niemczura, E., De Cat, P., Soydugan, E., Kolaczkowski, Z., Ostrowski, J., Telting, J. H., Uytterhoeven, K., Poretti, E., Rainer, M., Suarez, J. C., Mantegazza, L., Kilmartin, P., Pollard, K. R.
We present a spectroscopic survey of known and candidate $\gamma$\,Doradus stars. The high-resolution, high signal-to-noise spectra of 52 objects were collected by five different spectrographs. The spectral classification, atmospheric parameters (\te
Externí odkaz:
http://arxiv.org/abs/1602.06514
Autor:
Teodoro, M., Damineli, A., Heathcote, B., Richardson, N. D., Moffat, A. F. J., St-Jean, L., Russell, C., Gull, T. R., Madura, T. I., Pollard, K. R., Walter, F., Coimbra, A., Prates, R., Fernández-Lajús, E., Gamen, R. C., Hickel, G., Henrique, W., Navarete, F., Andrade, T., Jablonski, F., Luckas, P., Locke, M., Powles, J., Bohlsen, T., Chini, R., Corcoran, M. F., Hamaguchi, K., Groh, J. H., Hillier, D. J., Weigelt, G.
{\eta} Carinae is an extremely massive binary system in which rapid spectrum variations occur near periastron. Most notably, near periastron the He II $\lambda 4686$ line increases rapidly in strength, drops to a minimum value, then increases briefly
Externí odkaz:
http://arxiv.org/abs/1601.03396
Autor:
Ranc, C., Cassan, A., Albrow, M. D., Kubas, D., Bond, I. A., Batista, V., Beaulieu, J. -P., Bennett, D. P., Dominik, M., Dong, Subo, Fouqué, P., Gould, A., Greenhill, J., Jørgensen, U. G., Kains, N., Menzies, J., Sumi, T., Bachelet, E., Coutures, C., Dieters, S., Prester, D. Dominis, Donatowicz, J., Gaudi, B. S., Han, C., Hundertmark, M., Horne, K., Kane, S. R., Lee, C. -U., Marquette, J. -B., Park, B. -G., Pollard, K. R., Sahu, K. C., Street, R., Tsapras, Y., Wambsganss, J., Williams, A., Zub, M., Abe, F., Fukui, A., Itow, Y., Masuda, K., Matsubara, Y., Muraki, Y., Ohnishi, K., Rattenbury, N., Saito, To., Sullivan, D. J., Sweatman, W. L., Tristram, P. J., Yock, P. C. M., Yonehara, A.
Publikováno v:
A&A 580, A125 (2015)
We present the analysis of MOA-2007-BLG-197Lb, the first brown dwarf companion to a Sun-like star detected through gravitational microlensing. The event was alerted and followed-up photometrically by a network of telescopes from the PLANET, MOA, and
Externí odkaz:
http://arxiv.org/abs/1505.06037
Hybrid stars of the {\gamma} Doradus and {\delta} Scuti pulsation types have great potential for asteroseismic analysis to explore their interior structure. To achieve this, mode identi- fications of pulsational frequencies observed in the stars must
Externí odkaz:
http://arxiv.org/abs/1412.2828
Autor:
Skowron, J., Shin, I. -G., Udalski, A., Han, C., Sumi, T., Shvartzvald, Y., Gould, A., Dominis-Prester, D., Street, R. A., Jørgensen, U. G., Bennett, D. P., Bozza, V., Szymański, M. K., Kubiak, M., Pietrzyński, G., Soszyński, I., Poleski, R., Kozłowski, S., Pietrukowicz, P., Ulaczyk, K., Wyrzykowski, Ł., Abe, F., Bhattacharya, A., Bond, I. A., Botzler, C. S., Freeman, M., Fukui, A., Fukunaga, D., Itow, Y., Ling, C. H., Koshimoto, N., Masuda, K., Matsubara, Y., Muraki, Y., Namba, S., Ohnishi, K., Philpott, L. C., Rattenbury, N., Saito, T., Sullivan, D. J., Suzuki, D., Tristram, P. J., Yock, P. C. M., Maoz, D., Kaspi, S., Friedman, M., Almeida, L. A., Batista, V., Christie, G., Choi, J. -Y., DePoy, D. L., Gaudi, B. S., Henderson, C., Hwang, K. -H., Jablonski, F., Jung, Y. K., Lee, C. -U., McCormick, J., Natusch, T., Ngan, H., Park, H., Pogge, R. W., Yee, J., Albrow, M. D., Bachelet, E., Beaulieu, J. -P., Brillant, S., Caldwell, J. A. R., Cassan, A., Cole, A., Corrales, E., Coutures, Ch., Dieters, S., Donatowicz, J., Fouqué, P., Greenhill, J., Kains, N., Kane, S. R., Kubas, D., Marquette, J. -B., Martin, R., Menzies, J., Pollard, K. R., Ranc, C., Sahu, K. C., Wambsganss, J., Williams, A., Wouters, D., Tsapras, Y., Bramich, D. M., Horne, K., Hundertmark, M., Snodgrass, C., Steele, I. A., Alsubai, K. A., Browne, P., Burgdorf, M. J., Novati, S. Calchi, Dodds, P., Dominik, M., Dreizler, S., Fang, X. -S., Gu, C. -H., Hardis, Harpsøe, K., Hessman, F. V., Hinse, T. C., Hornstrup, A., Jessen-Hansen, J., Kerins, E., Liebig, C., Lund, M., Lundkvist, M., Mancini, L., Mathiasen, M., Penny, M. T., Rahvar, S., Ricci, D., Scarpetta, G., Skottfelt, J., Southworth, J., Surdej, J., Tregloan-Reed, J., Wertz, O.
We report the discovery of a Jupiter-mass planet orbiting an M-dwarf star that gave rise to the microlensing event OGLE-2011-BLG-0265. Such a system is very rare among known planetary systems and thus the discovery is important for theoretical studie
Externí odkaz:
http://arxiv.org/abs/1410.8252