Results 121 to 130 of about 82,748 (221)

A New WZ Sagittae-type Dwarf Nova KSP-OT-202104a Near the Period Minimum from the KMTNet Supernova Program

The Astronomical Journal
We present photometric and spectroscopic studies of a new WZ Sagittae (Sge)-type dwarf nova (DN) KSP-OT-202104a discovered by the Korea Microlensing Telescope Network Supernova Program. The source exhibits outburst amplitudes of ∼8 mag with a duration of
Sang Chul Kim, Youngdae Lee, Dae-Sik Moon, Hong Soo Park, Yuan Qi Ni, Nan Jiang, Hyobin Im   +6 more
doaj   +1 more source

AN ASTROMETRIC CATALOG OF SOUTHERN AND EQUATORIAL DWARF NOVAE

, 1992
An astrometric catalogue of 117 southern and equatorial dwarf novae is presented, complementing earlier work for the northern sky. The mean internal accuracy of the coordinates if of the order of +/- 0.025s in alpha cos-delta and +/- 0.3" in ...
UNGRUHE, R, VOGT, N, MEIJER, J, BRUCH, A, SCHIMPKE, T, NAUMANN, M   +5 more
core  

Application of the hot white dwarf atmosphere models to the X-ray data of classical novae

, 2021
The analyses of X-ray emission from classical novae after outburst have shown that the soft X-ray emission below 1 keV, which is thought to originate from the photosphere of the white dwarf, is inconsistent with the simple black body model of emission ...
BALMAN, Şölen
core  

Recurrent novae [PDF]

, 1993
Recurrent novae seem to be a rather inhomogeneous group: T CrB is a binary with a M III companion; U Sco probably has a late dwarf as companion. Three are fast novae; two are slow novae. Some of them appear to have normal chemical composition; others may
Selvelli, Pierluigi, Hack, Margherita
core  

Survey of period variations of superhumps in su UMa-type dwarf novae

, 2009
We systematically surveyed period variations of superhumps in SU UMa-type dwarf novae based on newly obtained data and past publications. In many systems, the evolution of the superhump period is found to be composed of three distinct stages: an early ...
Ueoka, R., Matsumoto, K., Tanaka, S., Chochol, D., Hambsch, F.-J., Katysheva, N., Nogami, D., Ohashi, H., Retter, A., Garradd, G., Nishi, Y., Baklanov, A., Gazeas, K.D., Miller, I., Sasada, M., Shugarov, S.Yu., Dancikova, R., Sakai, N., Henden, A., Gualdoni, C., Sugiyasu, K., Aggleton, M., Stockdale, C., Arai, A., Richmond, M., Good, G.A., Maehara, H., Geary, K., Butterworth, N.D., Koppelman, M.D., Michel, R., Král, L., Kučáková, H., Šťastný, P., Ohshima, T., Ripero, J., Morelle, E., Krajci, T., Masi, G., Martin, B., Kunitomi, N., Billings, G., Rosenbush, A.E., Urbančok, L., Torii, K., Kolasa, M., Virtanen, J., Yamada, N., Soejima, Y., Stubbings, R., Poyner, G., Mularczyk, K., Volkov, I., Vanmunster, T., Brady, S., Itoh, H., Heathcote, B., Tikkanen, P., Kudzej, I., Cook, L.M., Douzu, K.-I., Richards, T., Crabtree, D., Kiyota, S., Davis, T., Kida, M., Kedzierski, P., Khramtsova, M., Uemura, M., Kubota, K., Beaulieu, K., Niarchos, P.G., Nelson, P., Tanabe, K., Ögmen, Y., Moilanen, M., Yushchenko, A.V., Davis, S., Kunihiro, K., Novák, R., Omodaka, T., Kinnunen, T., Crawford, T., Oksanen, A., Buczynski, D., Maruoka, K., Dubovsky, P.A., Andreev, M., Kern, J., Simonsen, M., Sano, Y., Pojmański, G., Fiaschi, M., Koizumi, M., Liller, W., Baba, H., Shears, J., Schmeer, P., Nakajima, K., Taguchi, H., Złoczewski, K., Kehusmaa, P., Bolt, G., Bedient, J., Mika, A.H.O., Walker, S., Mallia, F., Ishioka, R., Monard, B., Pietz, J., James, N., Imamura, K., Olech, A., Kocián, R., Staels, B., Voloshina, I., Jensen, L.-T., Morikawa, K., Cárdenas, A.A., Boyd, D., Muyllaert, E., Kato, T., Tanaka, J., Miyashita, A., Imada, A., Reszelski, M., Kriebel, W., Santallo, R., Pavlenko, E.P., Yasui, H., Ponthière, P.D.E., Starkey, D.R., Julian II, W.M., Iwamatsu, H., Gomez, T.L., Hynek, T., Moritani, Y., Pickard, R.D.   +137 more
core   +1 more source

Application of the hot white dwarf atmosphere models to the X-ray data of classical novae

, 1998
The analyses of X-ray emission from classical novae after outburst have shown that the soft X-ray emission below 1 keV, which is thought to originate from the photosphere of the white dwarf, is inconsistent with the simple black body model of emission ...
Balman, Şölen
core   +1 more source

Dwarf galaxies Proceedings

, 1994
the following topics were dealt with: dwarf galaxies, structure formation, galaxy evolution, star formation, dark matter, local dwarf spheroidals, big holes in the H I component of dwarf irregulars, possible discontinuity between normal and dwarf ...
European Southern Observatory, Garching (Germany), Prugniel, P. (eds.), Meylan, G.   +2 more
core  

Analysis of Novae X-ray spectra in outburst and quiescence [PDF]

openQuesta tesi si concentra sullo studio di due sistemi di nova, uno in una fase tardiva dell'outburst e l'altro che ritorna in quiescenza pochi anni dopo l'outburst.
CANTON, VALENTINA
core  

Synergies of THESEUS with the large facilities of the 2030s and guest observer opportunities. [PDF]

Exp Astron (Dordr), 2021
Rosati P, Basa S, Blain AW, Bozzo E, Branchesi M, Christensen L, Ferrara A, Gomboc A, O'Brien PT, Osborne JP, Rossi A, Schüssler F, Spurio M, Stergioulas N, Stratta G, Amati L, Casewell S, Ciolfi R, Ghirlanda G, Grimm S, Guetta D, Harms J, Le Floc'h E, Longo F, Maggiore M, Mereghetti S, Oganesyan G, Salvaterra R, Tanvir NR, Turriziani S, Vergani SD, Balman S, Caruana J, Erkut MH, Guidorzi G, Frontera F, Martin-Carrillo A, Paltani S, Porquet D, Sergijenko O.   +39 more
europepmc   +1 more source

ASASSN-16dv: Superhumps in a Long-period X-Ray-luminous Dwarf Nova

The Astronomical Journal
Combining a long-term light curve, four-color rapid photometry, and spectroscopic and X-ray observations with a 27-day time base TESS light curve, we present the first dedicated study of ASASSN-16dv, detected as a transient in the All-Sky Automated ...
Albert Bruch, Raimundo Lopes de Oliveira, Amanda Silva de Araujo, Romualdo Eleutério, Angela Cristina Krabbe, Koji Mukai   +5 more
doaj   +1 more source