Search Publications
Tensile strength of 67P/Churyumov-Gerasimenko nucleus material from overhangs (Corrigendum)
Jorda, L.; Lara, L. M.; Bertaux, J. -L. +52 more
Nonlinear model to study filamentation instability of circularly polarized dispersive Alfvén waves in solar wind plasmas
Sharma, R. P.; Sharma, Swati; Mishra, M. K.
This paper examines the small-scale solar wind turbulence driven in view of the Alfvén waves subjected to ponderomotive nonlinearity. Filamentation instability is known to take place for the case of dispersive Alfvén wave (DAW) propagating parallel to the ambient magnetic field. The ponderomotive force associated with DAW is responsible for wave l…
Erratum: “A Suzaku View of Accretion-powered X-Ray Pulsar GX 1+4” (2017, ApJ, 838, 30)
Hoshino, Akio; Naik, Sachindra; Kitamoto, Shunji +3 more
Star formation toward the H II region IRAS 10427-6032
Chen, Wen-Ping; Samal, Manash R.; Vaidya, Kaushar +3 more
The formation and properties of star clusters formed at the edges of the H II regions are poorly known. In this paper, we study stellar content, physical conditions, and star formation processes around a relatively unknown young H II region IRAS 10427-6032, located in the southern outskirts of the Carina Nebula. We study this region by making use …
New Approach to Solar Flare Trigger Process with Hinode/Solar Optical Telescope
Bamba, Yumi
XMM-Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ≈ 0.41
Combi, J. A.; García, F.; Bassino, L. P. +2 more
We report on a detailed X-ray study of the extended emission of the intracluster medium (ICM) around NGC 3268 in the Antlia Cluster of galaxies, together with a characterization of an extended source in the field, namely a background cluster of galaxies at z ≈ 0.41, which was previously accounted as an X-ray point source. The spectral properties o…
New measurements and analysis of the Beta Cephei star V909 Cassiopeiae
Boyd, D.; Koff, R.
V909 Cas is a little-studied example of a Beta Cep pulsating variable star, located in the OB association Cas OB8 in the Perseus spiral arm of the Milky Way. Photometric observations in 2016-'17 provided thirty new times of pulsation extrema and enabled its mean pulsation period to be determined as 0.2067798(1)d. From spectroscopic observations we…
δ Mus Revisited: Rectifying a 82 yr-old Mistake
Boffin, Henri M. J.; Pourbaix, Dimitri
The red giant δ Muscae is known since 1919 to be a spectroscopic binary, and the first and only orbit was determined in 1936, claiming the period to be 847 days. This was discrepant with the Hipparcos determined astrometric orbit. Using the latest data available for this object - leading to a 100 yr time-span - we show here that the correct period…
Estudio de fuentes difusas sobre el radiohalo de TXS 0828+193
Moyano, M.; Merlo, D.
In this paper we analyzed images from the Hubble Space Telescope of TXS 0828+193, a radiogalaxy at high redshift (=2.572), with the objective of studying a faint pair of sources recently discovered in order to confirm photometrically its physical relationship with this radiogalaxy. Using combined SExtractor and GAIA values of 26 and 27.5 were obta…
Study of CoRoT 105415473: A Heartbeat Star with δ Scuti Oscillations
Chou, Dean-Yi; Fernández Fernández, Javier
We study the light curves of CoRoT 105415473 with the CoRoT satellite photometric data of 144 days. The light curves consist of two types of temporal variations: periodic brightening and pulsational. The periodic brightening suggests that the variations are from a binary system without eclipsing, with an orbital period of 2.6 days. The frequency a…