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Chemical abundances in Orion protoplanetary discs: integral field spectroscopy and photoevaporation models of HST 10
Y. G. Tsamis, N. Flores-Fajardo, W. J. Henney +2
Photoevaporating protoplanetary discs (proplyds) in the vicinity of hot massive stars, such as those found in Orion, are important objects of study for the fields of star formation…
Pumping up the [N I] nebular lines
G. J. Ferland, W. J. Henney, C. R. O'Dell +3
The optical [N I] doublet near 5200 Å is anomalously strong in a variety of emission-line objects. We compute a detailed photoionization model and use it to show that pumping by fa…
Ionized gas diagnostics from protoplanetary discs in the Orion Nebula and the abundance discrepancy problem
A. Mesa-Delgado, M. Núñez-Díaz, C. Esteban +5
We present results from integral field spectroscopy with PMAS. The observed field contains: five protoplanetary discs (also known as proplyds), the high-velocity jet HH 514 and a b…