output
19962026
most citedCold Dark Clouds: The Initial Conditions for Star Formation

1k citations

Showing 1999 · astro-phShow all

9 papers · 2 filters

astro-ph1999★ 2 cited

Jet driven molecular outflows in Orion

A. Rodriguez-Franco, J. Martin-Pintado, T. L. Wilson

We present high sensitivity and high angular resolution images of the high velocity (vLSR>30kms^-1) CO emission in the J=1-0 and J=2-1 lines of the Orion KL region. These results r…

astro-ph1999★ 1 cited

Molecular line observations of proto-planetary nebulae

J. Alcolea, V. Bujarrabal, A. Castro-Carrizo +3

We present our recent results on mm-wave CO observations of proto-planetary nebulae. These include high-resolution interferometric maps of various CO lines in three well known bipo…

astro-ph1999★ 47 cited

Near-infrared photometry of isolated spirals with and without an AGN. I: The Data

I. Marquez, F. Durret, R. M. Gonzalez Delgado +6

We present infrared imaging data in the J and K' bands obtained for 18 active spiral galaxies, together with 11 non active galaxies taken as a control sample. All of them were chos…

astro-ph1999★ 214 cited

A Survey for Infall Motions toward Starless Cores. I. CS (2-1) and NH (1-0) Observations

Chang Won Lee, Philip C. Myers, Mario Tafalla

In this paper, we present the first results of a survey of 220 starless cores selected primarily by their optical obscuration (Lee & Myers 1999) and observed in CS (2-1), NH$^+…

astro-ph1999★ 21 cited

A Molecular Counterpart to the Herbig-Haro 1-2 Flow

A. Moro-Martin, J. Cernicharo, A. Noriega-Crespo +1

We present high angular resolution (12"-24") and high sensitivity 12CO and 13CO J=2-1 and J=1-0 observations of the HH 1-2 outflow. The observations show the molecular counterpart,…

astro-ph1999★ 55 cited

ISO observations toward the reflection nebula NGC 7023: A nonequilibrium ortho- to para-H2 ratio

A. Fuente, J. Martin-Pintado, N. J. Rodrıguez-Fernández +3

We have observed the S(0), S(1), S(2), S(3), S(4) and S(5) rotational lines of molecular hydrogen (H2) towards the peak of the photodissociation region (PDR) associated with the re…