99 citations · 341 across the 7 of their papers we have counts for
7 papers
The Excitation of Extended Red Emission: New Constraints on its Carrier From HST Observations of NGC 7023
Adolf N. Witt, Karl D. Gordon, Uma P. Vijh +3
The carrier of the dust-associated photoluminescence process causing the extended red emission (ERE) in many dusty interstellar environments remains unidentified. Several competing…
SMC-Type Interstellar Dust in the Milky Way
Lynne A. Valencic, Geoffrey C. Clayton, Karl Gordon +1
It is well known that the sightline toward HD 204827 in the cluster Trumpler 37 shows an UV extinction curve that does not follow CCM. However, when a dust component, foreground to…
The Role of Polycyclic Aromatic Hydrocarbons in Ultraviolet Extinction. I. Probing small molecular PAHs
Geoffrey C. Clayton, Karl D. Gordon, Adolf N. Witt +7
We have obtained new STIS/HST spectra to search for structure in the ultraviolet interstellar extinction curve, with particular emphasis on a search for absorption features produce…
A New Feature in the Interstellar Extinction Curve at 2700 A: Diamonds in the Rough?
Geoffrey C. Clayton, Karl D. Gordon, Adolf N. Witt +7
Space Telescope Imaging Spectrograph (STIS) and archival International Ultraviolet Explorer (IUE) data were used to search for structure in the ultraviolet interstellar extinction…
The Photophysics of the Carrier of Extended Red Emission
Tracy L. Smith, Adolf N. Witt
Interstellar dust contains a component which reveals its presence by emitting a broad, unstructured band of light in the 540 to 950 nm wavelength range, referred to as Extended Red…
Dust Emission Features in NGC 7023 between 0.35 and 2.5 micron: Extended Red Emission (0.7 micron) and Two New Emission Features (1.15 and 1.5 micron)
K. D. Gordon, A. N. Witt, R. J. Rudy +6
We present 0.35 to 2.5 micron spectra of the south and northwest filaments in the reflection nebula NGC 7023. These spectra were used to test the theory of Seahra & Duley that carb…