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Gamma-ray emitting narrow-line Seyfert 1 galaxies: Past, present, and future
DOI: 10.1007/s12036-019-9604-3 Bibcode: 2019JApA...40...39P

Paliya, Vaidehi S.

This article reviews our current understanding about γ-ray detected narrow-line Seyfert 1 (γ-NLSy1) galaxies. The detection with the Large Area Telescope onboard Fermi Gamma-ray Space Tel…

2019 Journal of Astrophysics and Astronomy
eHST 19
CCD UBV(RI)KC photometry of NGC 2323 and NGC 2539 open clusters
DOI: 10.1007/s12036-019-9600-7 Bibcode: 2019JApA...40...33O

Oralhan, İnci Akkaya; Michel, Raúl; Karataş, Yüksel +3 more

The open clusters NGC 2323 and NGC 2539 have been analysed using CCD UBV

2019 Journal of Astrophysics and Astronomy
Gaia 7
Relation between solar flares and halo coronal mass ejections
DOI: 10.1007/s12036-018-9570-1 Bibcode: 2019JApA...40....1R

Sankarasubramanian, K.; Rao, V. Koteswara; Gopal, K. Rama +2 more

Solar flares and coronal mass ejections (CMEs) are two very important active events from Sun. Inspite of several theoretical and statistical analyses, the relation between solar flares and CMEs is so far not well established, and strong opinions and arguments still continue. Statistical approaches use a lot of data available from many measurements…

2019 Journal of Astrophysics and Astronomy
Hinode SOHO 4