Results 191 to 200 of about 9,157 (217)

Spectroscopic Observations of Emission-line Stars

Publications of the Astronomical Society of Australia, 1991
AbstractIn this paper we present the results of spectroscopic observations for 34 emission-line stars (ELSs) in the Orion belt region, which were detected in an extensive survery. Spectral classification and the intensities of Hα and Hβ emission have revealed that the observed ELSs are probably T-Tauri type stars.
T. Kogure, K. Ogua, M. Nakano, S. Yoshida   +3 more
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The N III Emission Lines in the Of Stars

Publications of the Astronomical Society of the Pacific, 1973
Recent work has lead to an improved understanding of the physical mechanisms which produce the NIH emission lines in Of stars. The present status of the problem is briefly reviewed in this paper.
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Early-type Emission-line Stars

2007
Wolf-Rayet (WR) stars owe its name to the discoverers, C. Wolf and G. Rayet. They are one of the most conspicuous stellar objects in spectral features, activities, and in the processes of stellar evolution. They are spectroscopically characterized by the following features.
Tomokazu Kogure, Kam-Ching Leung
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Emission-Line Stars in the Canis Major Star-Formation Region

Publications of the Astronomical Society of Japan, 1986
Abstract Using the Schmidt telescope of the Kiso Observatory, we have surveyed Hα-emission stars in the Canis Major star-formation region and its adjacent reference area. In the area of about 58 square degrees a total of 179 Hα-emission stars have been found in the magnitude range between K=6 and 15 with a majority in the V = 11–14 range.
Suhardja D. Wiramihardja, Tomokazu Kogure, Makoto Nakano, Shigeomi Yoshida   +3 more
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Early-Type Emission-Line Stars

1982
Early-type emission-line stars keep the continuous interest of the scientists. As it is believed the emission lines are formed in the extensive envelopes surrounding these stars. The various objects of this sort could be generally grouped into the following classes: a) the Of stars; b) the Wolf-Rayet stars; c) the Be-stars; d) the Shell stars; e) the B-
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Observations of Emission-Line Stars

Publications of the Astronomical Society of the Pacific, 1965
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Predictions of carbon emission intensity based on factor analysis and an improved extreme learning machine from the perspective of carbon emission efficiency

Journal of Cleaner Production, 2022
Chenchen Huang
exaly  

Aggregation‐Induced Emission: New Vistas at the Aggregate Level

Angewandte Chemie - International Edition, 2020
Lam Wing Yip, Zhang Haoke, Tang Benzhong   +2 more
exaly  

The effect of emission trading policy on carbon emission reduction: Evidence from an integrated study of pilot regions in China

Journal of Cleaner Production, 2020
Tianyuan Luo
exaly  

Asymmetric Directional Control of Thermal Emission

Advanced Materials, 2023
Qiang Li
exaly