Zobrazeno 1 - 10
of 933
pro vyhledávání: '"A. Mikolajewska"'
RX Pup is a symbiotic binary which experienced a nova outburst in the 1970's. Here we report a discovery of a ~1300 year old nova shell around the system and a possible detection of a ~7000 year old nova shell. Together with the nova shell ejected in
Externí odkaz:
http://arxiv.org/abs/2408.06523
Autor:
Gómez-Garrido, M., Bujarrabal, V., Alcolea, J., Castro-Carrizo, A., Mikołajewska, J., Santander-García, M.
Symbiotic systems often include an asymptotic giant branch (AGB) star and a hot compact companion, such as a white dwarf, that are in close interaction. Due to the intense ultraviolet emission from the hot companion, the molecular content of circumst
Externí odkaz:
http://arxiv.org/abs/2408.06033
Autor:
Singh, Koshvendra, Ninan, Joe P., Romanova, Marina M., Buckley, David A. H., Ojha, Devendra K., Ghosh, Arpan, Monson, Andrew, Schramm, Malte, Sharma, Saurabh, Reichart, Daniel E., Mikolajewska, Joanna, Beamin, Juan Carlos, Borissova, J., Ivanov, Valentin D., Kouprianov, Vladimir V., Hambsch, Franz-Josef, Pearce, Andrew
EX Lupi, a low-mass young stellar object, went into an accretion-driven outburst in March of 2022. The outburst caused a sudden phase change of ~ 112$^{\circ}$ $\pm$ 5$^{\circ}$ in periodically oscillating multiband lightcurves. Our high resolution s
Externí odkaz:
http://arxiv.org/abs/2404.05420
Publikováno v:
A&A 686, A226 (2024)
To shed light on the origin of magnetic symbiotic stars, we investigated the system FN Sgr in detail. We searched for a reasonable formation pathway to explain its stellar and binary parameters including the magnetic field of the accreting white dwar
Externí odkaz:
http://arxiv.org/abs/2402.08647
Autor:
Aydi, E., Chomiuk, L., Strader, J., Sokolovsky, K. V., Williams, R. E., Buckley, D. A. H., Ederoclite, A., Izzo, L., Kyer, R., Linford, J. D., Kniazev, A., Metzger, B. D., Mikolajewska, J., Molaro, P., Mollina, I., Mukai, K., Munari, U., Orio, M., Panurach, T., Shappee, B. J., Shen, K. J., Sokoloski, J. L., Urquhart, R., Walter, F. M.
The optical spectra of novae are characterized by emission lines from the hydrogen Balmer series and either Fe II or He/N, leading to their traditional classification into two spectral classes: "Fe II" and "He/N". For decades, the origins of these sp
Externí odkaz:
http://arxiv.org/abs/2309.07097
Autor:
Shara, Michael M., Lessing, Alec M., Hounsell, Rebekah, Mandel, Shifra, Zurek, David, Darnley, Matthew J., Graur, Or, Hillman, Yael, Meyer, Eileen T., Mikolajewska, Joanna, Neill, James D., Prialnik, Dina, Sparks, William
M87 has been monitored with a cadence of 5 days over a 9 month-long span through the near-ultraviolet (NUV:F275W) and optical (F606W) filters of the Wide Field Camera 3 (WFC3) of the $\textit{Hubble Space Telescope}$. This unprecedented dataset yield
Externí odkaz:
http://arxiv.org/abs/2308.15599
T CrB is a symbiotic recurrent nova that exhibits quiescent and active phases between its classical nova eruptions. The statistical properties of these active phases have been poorly studied thus far. Because of that their nature remained unknown. He
Externí odkaz:
http://arxiv.org/abs/2307.13838
In previous works, we computed abundances for the red giant in nearly four dozen S-type symbiotic systems (SySt). The abundances provide information about metallicity, evolutionary status, and possible memberships in Galactic stellar populations. Her
Externí odkaz:
http://arxiv.org/abs/2307.09596
Autor:
Magdolen, J., Dobrotka, A., Orio, M., Mikołajewska, J., Vanderburg, A., Monard, B., Aloisi, R., Bezák, P.
Publikováno v:
A&A 675, A140 (2023)
AIMS: We investigated the optical variability of the symbiotic binary FN Sgr, with photometric monitoring during $\simeq$55 years and with a high-cadence Kepler light curve lasting 81 days. METHODS: The data obtained in the V and I bands were reduced
Externí odkaz:
http://arxiv.org/abs/2306.05095
Autor:
Aydi, E., Chomiuk, L., Mikołajewska, J., Brink, J., Metzger, B. D., Strader, J., Buckley, D. A. H., Harvey, E. J., Holoien, T. W. -S., Izzo, L., Kawash, A., Linford, J. D., Molaro, P., Mollina, B., Mróz, P., Mukai, K., Orio, M., Panurach, T., Senchyna, P., Shappee, B. J., Shen, K. J., Sokoloski, J. L., Sokolovsky, K. V., Urquhart, R., Williams, R. E.
We present early spectral observations of the very slow Galactic nova Gaia22alz, over its gradual rise to peak brightness that lasted 180 days. During the first 50 days, when the nova was only 3--4 magnitudes above its normal brightness, the spectra
Externí odkaz:
http://arxiv.org/abs/2304.04306