Engineering topics

Hora, J.

Publications and source records attributed to Hora, J..

3 records

NASA NTRS1999

Revealing the Photodissociation Region: Hubble Space Telescope/NICMOS Imaging of NGC 7027

We report results from a Hubble Space Telescope (HST) and Near-Infrared Camera and Multiobject Spectrometer (NICMOS) program to study the distribution of hot neutral (molecular hydrogen) and ionized circumstellar material in the young planetary nebulae NGC 7027.

HST NICMOS Hubble Space Telescope NGC 7027 Photodi↗

NASA NTRS1998

Investigating the Near-Infrared Properties of Planetary Nebulae II. Medium Resolution Spectra

H2 was detected in four PNe in this survey for the first time. An analysis was perfomed using the H2 line ratios in all of the PN spectra in the survey where a sufficient number of lines were observed to determine the ortho-to-para ratio and the rotational and vibrational excitation temperatures of the H2 in those objects.

planetary↗

NASA NTRS1993

1993 SEB Revival: Expansion Phase

Explore the source record for details and available documents.

Mid-Infrared Array Camera↗