Results 111 to 120 of about 944,715 (218)

The interstellar absorption in selected area 47.

The Astronomical Journal, 1970
Abstract : A study of the obscuration in the direction of Selected Area 47 (1(II) = 159 degrees, b(II) = -21 degrees) has been made. An absorbing cloud was found at a distance of 300 pc with a total visual absorption of 2.0 magnitudes. (Author)
openaire   +1 more source

Loop I/NPS Morphology Predictions in the Ultralong-wavelength Band

The Astrophysical Journal
Loop I/North Polar Spur (NPS) is the giant arc structure above the Galactic plane observed at radio wavelengths (≲10 GHz). There has been long-standing debate about its origin. While many people believe that it consists of nearby supernova remnants (SNRs)
Yanping Cong, Bin Yue, Yidong Xu, Furen Deng, Jiajun Zhang, Xuelei Chen   +5 more
doaj   +1 more source

Cyclic C4+ as the Carrier of the Diffuse Interstellar Band at 503.9 nm?

The Astrophysical Journal
The diffuse interstellar bands (DIBs) have remained a mystery in astronomy since their discovery over a century ago. The only currently known carrier is ${{\rm{C}}}_{60}^{+}$ , responsible for five DIBs, while more than 550 are yet to be interpreted. The
Serge. A. Krasnokutski, Lisa Ganner, Milan Ončák, Florian Foitzik, Stefan Bergmeister, Fabio Zappa, Paul Scheier, Elisabeth Gruber   +7 more
doaj   +1 more source

Novel algorithms for the understanding of the chemical cosmos [PDF]

, 2015
Molecular data from the interstellar medium (ISM) contain information that holds the key to understanding our chemically controlled cosmos and to unlocking the secrets of our universe.
Makrymallis, A
core  

Infrared and Ultraviolet Properties of Polycyclic Aromatic Hydrocarbons: Constraints on the Carriers of AIBs and the 2175 Å Extinction Feature

The Astrophysical Journal
Polycyclic aromatic hydrocarbons (PAHs) are widely considered as the carriers of the aromatic infrared bands and possible contributors to the 2175 Å interstellar extinction feature.
Venkata Lakshmi Karri, Takashi Onaka, Mahadevappa Naganathappa   +2 more
doaj   +1 more source

The Ratio of Interstellar Absorption to Reddening.

The Astrophysical Journal, 1941
J. L. Greenstein, L. G. Henyey
openaire   +1 more source

Optical Interstellar Absorption Features [PDF]

Monthly Notices of the Royal Astronomical Society, 1968
W. Buscombe, P. M. Kennedy
openaire   +1 more source

Carbon onions: Carriers of the 217.5 nm interstellar absorption feature

, 2003
The UV-VIS characteristics of carbon ions fabricated by an arch discharge in water or liquid nitrogen show characteristics that are similar to the interstellar absorption feature.
Wang, H, Chhowalla, M, Sano, N, Lee, SB, Amaratunga, GAJ, ,, Teo, KBK   +6 more
core  

The HI super profiles of the THINGS galaxies [PDF]

, 2010
Includes abstract.Includes bibliographical references (leaves 95-99).We use the HI velocity profiles of The HI Nearby Galaxy Survey (THINGS) galaxies to study the phase structure of the interstellar medium (ISM) and its relation to galaxy properties ...
Ianjamasimanana, Roger
core  

Dust Grain Chemistry in the Diffuse Interstellar Medium toward the Black Hole Transient GX 339–4

The Astrophysical Journal
We present results on X-ray absorption and the dust grain chemistry in the diffuse interstellar medium, based on a new Cycle 25 Chandra High Energy Transmission Grating Spectrometer (HETGS) observational campaign targeting the black hole transient GX 339–
I. Psaradaki, L. Corrales, E. Costantini, P. Draghis, J. A. García, E. Gatuzz, P. Kosec, G. Mastroserio, M. Mehdipour, F. Paerels, D. Rogantini, N. Schulz, S. Zeegers   +12 more
doaj   +1 more source