48 citations · 190 across the 8 of their papers we have counts for
8 papers
Observations of 6 - 200 μm emission of the Ophiuchus cloud LDN 1688
M. G. Rawlings, M. Juvela, K. Lehtinen +2
We examine two positions, ON1 and ON2, within the Ophiuchus cloud LDN 1688 using observations made with the ISOPHOT instrument aboard the ISO satellite. The data include mid-IR spe…
Scattered H-alpha emission from a large translucent cloud G294-24
K. Lehtinen, M. Juvela, K. Mattila
We study an undocumented large translucent cloud, detected by means of its enhanced radiation on the SHASSA (Southern H-Alpha Sky Survey Atlas) survey. We consider whether its exce…
ISO far infrared observations of the high latitude cloud L1642. II. Correlated variations of far-infrared emissivity and temperature of "classical large" dust particles
K. Lehtinen, M. Juvela, K. Mattila +2
Our aim is to compare the infrared properties of big, ``classical'' dust grains with visual extinction in the cloud L1642. In particular, we study the differences of grain emissivi…
Scattered H-alpha light from Galactic dust clouds
K. Mattila, M. Juvela, K. Lehtinen
Bright emission nebulae, or HII regions, around hot stars are readily seen in H-alpha light. However, the all-pervasive faint H-alpha emission has only recently been detected and m…
Properties of dust in the high-latitude translucent cloud L1780 I: Spatially distinct dust populations and increased dust emissivity from ISO observations
M. Ridderstad, M. Juvela, K. Lehtinen +2
We have analyzed the properties of dust in the high galactic latitude translucent cloud Lynds 1780 using ISOPHOT maps at 100 and 200 micrometers and raster scans at 60, 80, 100, 12…
The ratio of N(C18O) and Av in Chamaeleon I and III-B using 2MASS and SEST
J. Kainulainen, K. Lehtinen, J. Harju
We investigate the relationship between the C18O column density and the visual extinction in Chamaeleon I and in a part of the Chamaeleon III molecular cloud. The C18O column densi…