Results 111 to 120 of about 520,436 (213)

Correlation between molecular lines and diffuse interstellar bands [PDF]

, 1994
Observations are presented of the Diffuse Interstellar Bands (DIB's) at 4726, 4763, and 4789 A and at 5780 and 5797 A together with the ultraviolet lines of CH and CN molecules for stars with different shapes of UV extinction curve.
Szczerba, Richard, Volk, Kevin, Kennelly, E. T., Walker, G. A. H., Hill, G., Sneden, C., Krelowski, J.   +6 more
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Overlapping Open Clusters NGC 1750 and NGC 1758 behind the Taurus Dark Clouds. II. CCD Photometry in the Vilnius System

Open Astronomy, 2003
Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V., Kazlauskas A., Černiauskas A., Boyle R. P., Vrba F. J., Philip A. G. Davis, Laugalys V., Černis K., Smriglio F.   +8 more
doaj   +1 more source

Interstellar extinction from photometric surveys: Application to four high-latitude areas

, 2020
© 2018 O. Malkov et al. Information on interstellar extinction and dust properties may be obtained from modern large photometric surveys data. Virtual Observatory facilities allow users to make a fast and correct cross-identification of objects from ...

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Luminosity Distance and Extinction by Submicrometer-sized Grains

The Astrophysical Journal Letters
The distance to the stars is a fundamental parameter, which is determined via two primary methods—parallax and luminosity. While the parallax is a direct trigonometric method, the luminosity distance is usually influenced by interstellar extinction.
R. Siebenmorgen, Frank Heymann, R. Chini
doaj   +1 more source

An analysis of the Type Ia SN 2024gy and a comparison of different host extinction estimation techniques

Astronomy & Astrophysics
Type Ia supernovae (SNe Ia) are well-known standardisable candles, and are one of the main ways to measure the distance to their host galaxies. However, extinction due to interstellar dust causes objects to appear fainter and redder.
Terwel Jacco H., Maguire Kate, O’Donnell Cillian, Pursiainen Miika, Casasbuenas Alba, Thiim Gadeberg Julie, Godson Ben, Harvey Luke, Nobre Hauptmann Benjamin, Koivisto Niilo, Liu Chang, Shenoy Shravya, Grund Sørensen Samuel, Alejandra Díaz Teodori María, Guldberg Theil Astrid, Turkki Mikael, Alburai Alaa, Anderson Joe, de Boer Thomas, Müller Bravo Tomás, Burgaz Umut, Chambers Kenneth C., Chen Ting-Wan, Duarte João, Galbany Lluis, Gromadzki Mariusz, Inserra Cosimo, Johansson Joel, Kim Young-Lo, Lowe Thomas, Magnier Eugene, Santos Rita P., Sollerman Jesper, Wainscoat Richard, Young David R., Chen Tracy X., Graham Matthew J., Kasliwal Mansi M., Masci Frank J., Purdum Josiah N., Belkhodja Ines   +40 more
doaj   +1 more source

The formation of molecular hydrogen in the interstellar medium [PDF]

, 2010
H2 is the most abundant molecule in the interstellar medium and forms on the surface of interstellar dust grains. Laboratory studies have been conducted of HD formation on a dust grain analogue, which is a highly-oriented pyrolytic graphite surface ...
Islam, F.
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Grey extinction in the solar neighbourhood?

, 2003
Some of the close O and B dwarfs appear to be fainter than indicated by their Hipparcos distances, intrinsic absolute magnitudes attributed to their spectral types, and estimated selective interstellar extinction.
A. Strobel, W. Skórzyński, G. A. Galazutdinov   +2 more
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Interstellar extinction in the ultraviolet [PDF]

, 1972
Interstellar extinction curves over the region 3600-1100 A for 17 stars are presented. The observations were made by the two Wisconsin spectrometers onboard the OAO-2 with spectral resolutions of 10 A and 20 A.
Bless, R. C., Savage, B. D.
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Luminosity and Intrinsic Color Calibration of Main-Sequence Stars With 2Mass Photometry: All Sky Local Extinction

Open Astronomy, 2003
We present a new color index vs. absolute magnitude calibration of 2MASS JHK photometry. For the A0 to ~G5 and M segments of the main sequence information on the amount of interstellar extinction and its location in space may be obtained.
Knude Jens, Fabricius Claus
doaj   +1 more source

Investigation of ultraviolet interstellar extinction [PDF]

, 1973
Results concerning interstellar extinction in the ultraviolet are reported. These results were initially obtained by using data from main-sequence stars and were extended to include supergiants and emission stars. The principal finding of the analysis of
Payne, C., Haramundanis, K. L.
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