Results 31 to 40 of about 563,854 (280)

A Study of Stochastic Low-frequency Variability for Galactic O-type Stars

The Astrophysical Journal Supplement Series
In order to explore how the ubiquitous stochastic low-frequency (SLF) variability of O-type stars is related to various stellar characteristics, we compiled a sample of 150 O-type stars observed via ground-based spectroscopic surveys, alongside ...
Dong-Xiang Shen, Chun-Hua Zhu, Guo-Liang Lü, Xi-zhen Lu, Xiao-long He   +4 more
doaj   +1 more source

Atomic diffusion in the atmosphere of Feige 86

Open Astronomy, 2017
We have revisited the ultraviolet and optical spectra of the blue horizontal branch star Feige 86. The new analysis finds the star cooler and more compact than previously determined. The IUE spectrum of Feige 86 holds numerous unidentified spectral lines
Németh Péter
doaj   +1 more source

Ultraviolet Spectrophotometry of Early-Type Stars [PDF]

Symposium - International Astronomical Union, 1976
The ultraviolet spectra of B stars obtained with the sky scan telescope in the TD1 satellite have been used to obtain narrow-band magnitudes at several wavelengths. These photometric bands have an effective half-width of 100 Å. We have proposed a two-dimensional classification scheme based on ultraviolet colours, and some preliminary results are ...
K. Nandy, G. I. Thompson, C. M. Humphries   +2 more
openaire   +1 more source

Intrinsic Color Indices of Early-type Dwarf Stars [PDF]

The Astronomical Journal, 2020
Abstract Early-type stars are short lived and scarce in comparison with other types. Based on the recently released catalogs of early-type stars from the largest Large Sky Area Multi-Object Fiber Spectroscopic Telescope spectroscopic survey, the intrinsic colors of the stars with effective temperature up to 32,000 K are determined for ...
Dingshan Deng, Yang Sun, Mingjie Jian, Biwei Jiang, Haibo Yuan   +4 more
openaire   +2 more sources

XMM-Newton X-ray study of early type stars in the Carina OB1 association [PDF]

, 2007
<p><b>Aims:</b> X-ray properties of the stellar population in the Carina OB1 association are examined with special emphasis on early-type stars.
Albacete-Colombo, Allen, Antokhin, Antokhina, Bauer, Berghöfer, Bessell, Bohlin, Briggs, Carpenter, Carraro, Cherepashchuk, Corcoran, Corcoran, Corcoran, Cudworth, Davidson, DeGioia-Eastwood, Dessart, Dessart, Evans, Evans, Favata, Favata, Feinstein, Feldmeier, Fiore, Freyhammer, G. Rauw, Gagné, Giacconi, Giardino, Hamaguchi, Harnden, I. I. Antokhin, J. C. Brown, J.-M. Vreux, Jeffries, K. A. van der Hucht, Kahn, Lada, Leitherer, Leutenegger, Levato, Linder, Long, Lucy, Lucy, Lucy, Maheswaran, Maheswaran, Massey, Massey, Massey, Megeath, Meyer, Morrell, Motch, Nandra, Nazé, Niemela, Owocki, Owocki, Pallavicini, Pollock, Pollock, Preibisch, Prilutskii, Raassen, Rathborne, Rauw, Rauw, Rauw, Raymond, Sana, Sana, Sana, Sanchawala, Schlegel, Serio, Seward, Seward, Skinner, Smith, Smith, Stephenson, Stevens, Stevens, Stevens, Tapia, ud-Doula, Usov, Viotti, Walborn, Waldron, Weis   +95 more
core   +4 more sources

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source

The Value-added Catalog of OB Stars in LAMOST DR7

The Astrophysical Journal Supplement Series
In this work, we update the catalog of OB stars based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope data release 7 and modify the OB stars’ selection criteria in spectral line indices’ space.
Zhicun Liu, Wenyuan Cui, Jiajia Gu, Jianrong Shi, Guozhen Hu, Xiao-Long Wang, Zhenyan Huo   +6 more
doaj   +1 more source

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

Pediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia, Giulia Reggiani, Elizabeth J. Maran, Maria Elisa Delle Fave, Ilaria Baido, Anna Chiara Frigo, Maria Paola Boaro, Raffaella Colombatti   +7 more
wiley   +1 more source

New Libraries of Nonlocal Thermodynamic Equilibrium Model Spectra for O and Early-B Stars

The Astronomical Journal
A new set of stellar spectral models is generated from nonlocal thermodynamic equilibrium metal line-blanketed model atmospheres of T. Lanz & I. Hubeny.
Ivan Hubeny, Ralph Bohlin, Karl Gordon, Edward Fitzpatrick   +3 more
doaj   +1 more source

CO TO H2 RATIO OF INTERSTELLAR MOLECULAR CLOUDS IN THE DIRECTIONS OF EARLY TYPE STARS [PDF]

Journal of Astronomy and Space Sciences, 2004
We present measurements of interstellar CO absorption lines in the spectra of 7 early-type stars that were observed with the FUSE(Far Ultraviolet Spectroscopic Explorer).
Jae-Woo Park, Dae-Hee Lee, Kyoung-Wook Min   +2 more
doaj   +1 more source