Zobrazeno 1 - 10
of 52
pro vyhledávání: '"P. Rittipruk"'
Autor:
Lee, Jae Woo, Hong, Kyeongsoo, Kim, Hye-Young, Wolf, Marek, Park, Jang-Ho, Rittipruk, Pakakaew
It is known from archival TESS data that the semi-detached Algol system XZ UMa is one of the candidate binary stars exhibiting short-period oscillations. We secured new high-resolution spectroscopic observations for the program target to better under
Externí odkaz:
http://arxiv.org/abs/2312.13642
Autor:
Hong, Kyeongsoo, Lee, Jae Woo, Kim, Dong-Jin, Park, Jang-Ho, Kim, Hye-Young, Rittipruk, Pakakaew, Han, Cheongho
We present detailed analyses of updated eclipse timing diagrams for 32 contact binary merger candidates in the Galactic bulge. The photometric data was obtained from 2016 to 2021 using the Korea Microlensing Telescope Network (KMTNet) with the 1.6 m
Externí odkaz:
http://arxiv.org/abs/2310.03308
Publikováno v:
Odessa Astronomical Publications, Vol 26, Iss 1, Pp 131-136 (2013)
The spectra of HD47536 with resolving power R=30,000 and signal to noise ratio near 100 was obtained at 1.5 meter SMART telescope of CTIO, Chile.The analysis of chemical composition allowed to find the abundances of 33 chemical elements including th
Externí odkaz:
https://doaj.org/article/e612f249a0a14416800b0a44750a93ce
Autor:
Rattanamala, R., Awiphan, S., Komonjinda, S., Phriksee, A., Sappankum, P., A-thano, N., Chitchak, S., Rittipruk, P., Sawangwit, U., Poshyachinda, S., Reichart, D. E., Haislip, J. B.
We present the binary model and the eclipse timing variations of the eclipsing binary RR Cae, which consists of a white dwarf eclipsed by an M-type dwarf companion. The multi-wavelength optical photometry from the Transiting Exoplanet Survey Satellit
Externí odkaz:
http://arxiv.org/abs/2109.09397
Autor:
Alagao, M. A., Kawinkij, A., Buisset, C., Prasit, A., Lépine, T., Rabbia, Y., Berdeu, A., Thiébaut, É., Langlois, M., Tallon, M., Awiphan, S., Semenko, E., Rittipruk, P., Mkrtichian, D., Leckngam, A., Thuammasorn, G., Kaewsamoeta, P., Inpan, A., Kuha, T., Laoyang, A., Somboonchai, W., Kanthum, S., Poshyachinda, S., Soonthornthum, B.
The evanescent wave coronagraph uses the principle of frustrated total internal reflection (FTIR) to suppress the light coming from the star and study its close environment. Its focal plane mask is composed of a lens and a prism placed in contact wit
Externí odkaz:
http://arxiv.org/abs/2103.10044
Autor:
Hernandez, M. S., Schreiber, M. R., Parsons, S. G., Gansicke, B. T., Lagos, F., Raddi, R., Toloza, O., Tovmassian, G., Zorotovic, M., Irawati, P., Pasten, E., Rebassa-Mansergas, A., Ren, J. J., Rittipruk, P., Tappert, C.
Constraints from surveys of post common envelope binaries (PCEBs) consisting of a white dwarf plus an M-dwarf companion have led to significant progress in our understanding of the formation of close white dwarf binary stars with low-mass companions.
Externí odkaz:
http://arxiv.org/abs/2012.04683
Autor:
Ren, J. -J., Raddi, R., Rebassa-Mansergas, A., Hernandez, M. S., Parsons, S. G., Irawati, P., Rittipruk, P., Schreiber, M. R., Gansicke, B. T., Torres, S., Wang, H. -J., Zhang, J. -B., Zhao, Y., Zhou, Y. -T., Han, Z. -W., Wang, B., Liu, C., Liu, X. -W., Wang, Y., Zheng, J., Wang, J. -F., Zhao, F., Cui, K. -M., Shi, J. -R., Tian, H.
Close white dwarf binaries consisting of a white dwarf and an A, F, G or K type main sequence star, henceforth close WD+AFGK binaries, are ideal systems to understand the nature of type Ia supernovae progenitors and to test binary evolution models. I
Externí odkaz:
http://arxiv.org/abs/2010.02885
Autor:
Alexander Yushchenko, Dmytry Doikov, Sergei Andrievsky, Yeuncheol Jeong, Volodymyr Yushchenko, Pakakaew Rittipruk, Valery Kovtyukh, Aizat Demessinova, Vira Gopka, Alexander Raikov, Kyung Sook Jeong
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 39, Iss 4, Pp 169-180 (2022)
We investigated the chemical composition of the planetary host halo star HD47536 via high-resolution spectral observations recorded using a 1.5 meter Cerro Tololo Inter-American Observatory (CTIO) telescope (Chile). Furthermore, we determined the a
Externí odkaz:
https://doaj.org/article/d253384294eb489aa67c068501f7cf3c
Autor:
Alexander Yushchenko, Seunghyun Kim, Yeuncheol Jeong, Aizat Demessinova, Volodymyr Yushchenko, Dmytry Doikov, Vira Gopka, Kyung Sook Jeong, Pakakaew Rittipruk
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 38, Iss 3, Pp 175-183 (2021)
The dependencies of the chemical element abundances in stellar atmospheres with respect to solar abundances on the second ionization potentials of the same elements were investigated using the published stellar abundance patterns for 1,149 G and K
Externí odkaz:
https://doaj.org/article/527160207951460fb595c4063776e4f5
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