Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Nysewander, M. C."'
Autor:
Khokhlov, S. A., Miroshnichenko, A. S., Mennickent, R., Cabezas, M., Zhanabaev, Z. Zh., Reichart, D. E., Ivarsen, K. M., Haislip, J. B., Nysewander, M. C., LaCluyze, A. P.
We report the results of high-resolution ($R \sim 80,000$) spectroscopic observations of the emission-line object HD 85567, which has been classified as a FS CMa type object or a pre-main-sequence star. The main goal is to put more constraints on the
Externí odkaz:
http://arxiv.org/abs/1612.00524
Autor:
Miroshnichenko, A. S., Manset, N., Zharikov, S. V., Zsargo, J., Jimenez, J. A. Juarez, Groh, J. H., Levato, H., Grosso, M., Rudy, R. J., Laag, E. A., Crawford, K. B., Puetter, R. C., Reichart, D. E., Ivarsen, K. M., Haislip, J. B., Nysewander, M. C., LaCluyze, A. P.
Publikováno v:
Advances in Astronomy, vol. 2014, Article ID 130378, 2014
We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006--2013. Based on our earlier data we suggested that the object has features found in Luminous Blue Vari
Externí odkaz:
http://arxiv.org/abs/1404.1121
Autor:
Barlow, B. N., Kilkenny, D., Drechsel, H., Dunlap, B. H., O'Donoghue, D., Geier, S., O'Steen, R. G., Clemens, J. C., LaCluyze, A. P., Reichart, D. E., Haislip, J. B., Nysewander, M. C., Ivarsen, K. M.
We announce the discovery of a new eclipsing hot subdwarf B + M dwarf binary, EC 10246-2707, and present multi-colour photometric and spectroscopic observations of this system. Similar to other HW Vir-type binaries, the light curve shows both primary
Externí odkaz:
http://arxiv.org/abs/1210.8146
Autor:
Pastorello, A., Cappellaro, E., Inserra, C., Smartt, S. J., Pignata, G., Benetti, S., Valenti, S., Fraser, M., Takats, K., Benitez, S., Botticella, M. T., Brimacombe, J., Bufano, F., Cellier-Holzem, F., Costado, M. T., Cupani, G., Curtis, I., Elias-Rosa, N., Ergon, M., Fynbo, J. P. U., Hambsch, F. -J., Hamuy, M., Harutyunyan, A., Ivarson, K. M., Kankare, E., Martin, J. C., Kotak, R., LaCluyze, A. P., Maguire, K., Mattila, S., Maza, J., McCrum, M., Miluzio, M., Norgaard-Nielsen, H. U., Nysewander, M. C., Ochner, P., Pan, Y. -C., Pumo, M. L., Reichart, D. E., Tan, T. G., Taubenberger, S., Tomasella, L., Turatto, M., Wright, D.
We report the results of a 3 year-long dedicated monitoring campaign of a restless Luminous Blue Variable (LBV) in NGC 7259. The object, named SN 2009ip, was observed photometrically and spectroscopically in the optical and near-infrared domains. We
Externí odkaz:
http://arxiv.org/abs/1210.3568
Autor:
Hełminiak, K. G., Konacki, M., Rozyczka, M., Kaluzny, J., Ratajczak, M., Borkowski, J., Sybilski, P., Muterspaugh, M. W., Reichart, D. E., Ivarsen, K. M., Haislip, J. B., Crain, J. A., Foster, A. C., Nysewander, M. C., LaCluyze, A. P.
We present the orbital and physical parameters of a newly discovered low-mass detached eclipsing binary from the All-Sky Automated Survey (ASAS) database: ASAS J011328-3821.1 A - a member of a visual binary system with the secondary component separat
Externí odkaz:
http://arxiv.org/abs/1206.2862
Autor:
Gvaramadze, V. V., Kniazev, A. Y., Miroshnichenko, A. S., Berdnikov, L. N., Langer, N., Stringfellow, G. S., Todt, H., Hamann, W. -R., Grebel, E. K., Buckley, D., Crause, L., Crawford, S., Gulbis, A., Hettlage, C., Hooper, E., Husser, T. -O., Kotze, P., Loaring, N., Nordsieck, K. H., O'Donoghue, D., Pickering, T., Potter, S., Colmenero, E. Romero, Vaisanen, P., Williams, T., Wolf, M., Reichart, D. E., Ivarsen, K. M., Haislip, J. B., Nysewander, M. C., LaCluyze, A. P.
We report the discovery of two new Galactic candidate luminous blue variable (cLBV) stars via detection of circular shells (typical of known confirmed and cLBVs) and follow-up spectroscopy of their central stars. The shells were detected at 22 um in
Externí odkaz:
http://arxiv.org/abs/1201.2854
Autor:
Barlow, B. N., Dunlap, B. H., Clemens, J. C., Reichart, D. E., Ivarsen, K. M., LaCluyze, A. P., Haislip, J. B., Nysewander, M. C.
Dominated by a single, large-amplitude pulsation mode, the rapidly-pulsating hot subdwarf B star CS 1246 is a prime candidate for a long-term O-C diagram study. We collected nearly 400 hours of photometry with the PROMPT telescopes over a time span o
Externí odkaz:
http://arxiv.org/abs/1104.0666
Autor:
Hełminiak, K. G., Konacki, M., Złoczewski, K., Ratajczak, M., Reichart, D. E., Ivarsen, K. M., Haislip, J. B., Crain, J. A., Foster, A. C., Nysewander, M. C., LaCluyze, A. P.
We present the results of our spectroscopic and photometric analysis of two newly discovered low-mass detached eclipsing binaries found in the All-Sky Automated Survey (ASAS) catalogue: ASAS J093814-0104.4 and ASAS J212954-5620.1. Using the GIRAFFE i
Externí odkaz:
http://arxiv.org/abs/1101.0550
Autor:
Barlow, B. N., Dunlap, B. H., Clemens, J. C., Lynas-Gray, A. E., Ivarsen, K. M., LaCluyze, A. P., Reichart, D. E., Haislip, J. B., Nysewander, M. C.
We report the discovery of a large-amplitude oscillation in the hot subdwarf B star CS 1246 and present multi-colour photometry and time-resolved spectroscopy supporting this discovery. We used the 0.41-m PROMPT array to acquire data in the u', g', r
Externí odkaz:
http://arxiv.org/abs/0912.3903
Autor:
Descamps, P., Marchis, F., Durech, J., Emery, J., Harris, A. W., Kaasalainen, M., Berthier, J., Teng-Chuen-Yu, J. -P., Peyrot, A., Hutton, L., Greene, J., Pollock, J., Assafin, M., Vieira-Martins, R., Camargo, J. I. B., Braga-Ribas, F., Vachier, F., Reichart, D. E., Ivarsen, K. M., Crain, J. A., Nysewander, M. C., Lacluyze, A. P., Haislip, J. B., Behrend, R., Colas, F., Lecacheux, J., Bernasconi, L., Roy, R., Baudouin, P., Brunetto, L., Sposetti, S., Manzini, F.
We report on the results of a six-month photometric study of the main-belt binary C-type asteroid 121 Hermione, performed during its 2007 opposition. We took advantage of the rare observational opportunity afforded by one of the annual equinoxes of H
Externí odkaz:
http://arxiv.org/abs/0904.2033