Results 61 to 70 of about 504 (195)
Probing the Distinct Extinction Law of the Pillars of Creation in M16 with JWST
The Astrophysical Journal LettersInvestigating the extinction law in regions of high dust extinction, such as the Pillars of Creation within the M16 region, is crucial for understanding the densest parts of the interstellar medium (ISM).
Jun Li +4 more
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The Astronomical JournalThe viability of the star count (Wolf) method is assessed as a means of constraining the near-infrared (NIR) extinction law toward the Corona Australis molecular cloud. Using deep JHK _S photometry from the VISIONS survey, extinction maps with 1′ spatial
Botao Jiang, Jun Li, Xi Chen
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Observations of interstellar C2 toward three heavily reddened stars
The Astrophysical Journal, 1983 Observations have been made of the 2--0 band of the Phillips system of interstellar C/sub 2/ toward the heavily obscured early-type stars VI Cygni No. 12, HD 29647, and BD +66/sup 0/1675. The first direct proof that the rotational excitation temperatures of interstellar C/sub 2/ are nonthermal was obtained. Toward VI Cygni No.
B. L. Lutz, R. M. Crutcher
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Benchmarking Differential Reddening in Front of Globular Clusters
The Astronomical JournalInterstellar extinction is a major obstacle in determining accurate stellar parameters from photometry near the Galactic disk. It is especially true for globular clusters at low galactic latitudes, which suffer from significant amounts of spatially ...
Csilla Kalup, László Molnár
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Open Astronomy, 2011 A medium-band 12-color photometric system, based on the decontaminated Gaia BP/RP spectra, has been proposed in our Paper II. Here we analyze a possibility to apply some versions of this system for the determination of temperatures and gravities of stars
Straižys V., Lazauskaitė R.
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DIFFUSE INTERSTELLAR BAND 6202 ˚ A AS AN INDICATOR OF ORGANIC MATTER IN COSMOS: CEPHEID SPECTRA
Odessa Astronomical Publications, 2019 We have described the method of investigation of the diffuse interstellar band (DIB) at 6202 ˚ A. This DIB is seen in the spectra of cepheid stars, and it is blended with two stellar lines of Ce II (6201.773 ˚ A) and Ni I (6204.6 ˚ A).
S M. Andrievsky +5 more
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Open Astronomy, 2010 The contamination in the Gaia BP and RP spectra, caused by the LSF smearing, is a serious obstacle for the classification of stars since the contamination values at different wavelengths depend on temperatures, gravities, metallicities and interstellar ...
Straižys V. +2 more
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On the Relation between Interstellar Spectral Features and Reddening
Acta Astronomica, 2019 It is well known that interstellar spectral features correlate with color excess E(B$-$V). This suggests that measuring intensities of these features allows one to estimate reddening of stars. The aim of this paper is to check how tight intensities of interstellar diffuse bands (DIBs)are related to the amount of extinction, measured using E(B$-$V).
Krełowski, J. +3 more
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Photoelectric Vilnius Photometry of Stars in the Mega Proper Motion Field KA 10
Open Astronomy, 2003 Photoelectric seven-color photometry in the Vilnius medium-band, system is obtained for 87 stars down to V≃13.0 in the Kiev proper motion field KA10 [l = 137°, b = -59°]. The size of the field is 1.4 square degrees.
Bartašiutė S.
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Variations of Interstellar Gas-to-dust Ratios at High Galactic Latitudes
The Astrophysical JournalInterstellar dust at high Galactic latitudes can influence astronomical foreground subtraction, produce diffuse scattered light, and soften the UV spectra of quasars.
J. Michael Shull, Georgia V. Panopoulou
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