As the present study was progressing, we started a campaign of spectroscopic follow-up of the Hα emitters detected by IPHAS. Accordingly a dozen candidate...

H-alpha emission is ubiquitous in our Galaxy. It traces ionised gas of assorted nebulae such as HII regions, planetary nebulae, Wolf-Rayet nebulae, and...

H-alpha emission both traces diffuse ionised nebulae and is commonly prominent in the spectra of pre- and post-main-sequence stars and interacting binaries...

A planetary nebula has been discovered in the course of the INT/WFC Photometric Hα Survey (IPHAS) of the northern galactic plane. It is located near the...

On-going explorations of AGN based at mid-IR wavelengths has tightly constrained individual torus sizes to a few pc and found that spectral fitting in the N...

The authors obtained near infrared images in J, H, and K filters of the H II region N159 in the LMC with the IR Imager on the 1.5 m telescope of CTIO. Some 50...

We present JHK light curves of eclipsing dwarf novae (IP Peg and HT Cas) obtained with the 4.2m WHT telescope at La Palma and attempt experimental fits on the H...

In the last decade a significant amount of observational effort has been made to determine the physical parameters of low mass stars (M 1 Msol). The most...

We report, as a part of a long-term study of IR mergers and IR QSOs, detailed spectroscopic evidences for outflow (OF) features in nearby IR mergers/QSOs (with...