activity
19952024
most citedMultiwavelength observations of short time-scale variability in NGC 4151. IV. Analysis of multiwavelength continuum variability

190 citations · 906 across the 17 of their papers we have counts for

collaborators

17 papers

astro-ph.IM2024

An Endangered National Heritage Site -- The Cape Observatory

Ian Glass

The SAAO Cape Town campus was declared a National Heritage Site in December 2018, just short of its 200th anniversary, but is now in a run-down condition. As the former Royal Obser…

astro-ph.SR2014★ 116 cited

Towards stellar effective temperatures and diameters at one per cent accuracy for future surveys

L. Casagrande, L. Portinari, I. S. Glass +8

The apparent size of stars is a crucial benchmark for fundamental stellar properties such as effective temperatures, radii and surface gravities. While interferometric measurements…

astro-ph.SR2009★ 103 cited

A near-infrared survey of Miras and the distance to the Galactic Centre

Noriyuki Matsunaga, Takahiro Kawadu, Shogo Nishiyama +5

We report the results of a near-infrared survey for long-period variables in a field of view of 20 arcmin by 30 arcmin towards the Galactic Centre (GC). We have detected 1364 varia…

astro-ph.SR2009★ 16 cited

Mid-IR period-magnitude relations for AGB stars

I. S. Glass, M. Schultheis, J. A. D. L. Blommaert +3

Asymptotic Giant Branch variables are found to obey period-luminosity relations in the mid-IR similar to those seen at K_S (2.14 microns), even at 24 microns where emission from ci…

astro-ph2007★ 23 cited

Semi-Regular Variables in the Solar Neighbourhood

I. S. Glass, F. van Leeuwen

Period-luminosity sequences have been shown to exist among the Semi-Regular Variables (SRVs) in the Magellanic Clouds (Wood et al, 1999), the Bulge of the Milky Way galaxy (Glass &…

astro-ph2006

SRVs in the Solar Neighbourhood

I. S. Glass

Period-luminosity sequences have been shown to exist among the Semi-Regular Variables (SRVs) of the Magellanic Clouds (Wood et al, 1999), the Bulge of the Milky Way galaxy (Glass &…