Results 31 to 40 of about 20,011 (211)

PLATO as it is: A legacy mission for Galactic archaeology

Astronomische Nachrichten, Volume 338, Issue 6, Page 644-661, July 2017., 2017
Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high‐resolution chrono‐chemo‐kinematical maps of the Galaxy. Data from large‐scale astrometric and spectroscopic surveys will soon provide us with a well‐defined view of the current chemo‐kinematical structure of the Milky Way, but it ...
A. Miglio, C. Chiappini, B. Mosser, G. R. Davies, K. Freeman, L. Girardi, P. Jofré, D. Kawata, B. M. Rendle, M. Valentini, L. Casagrande, W. J. Chaplin, G. Gilmore, K. Hawkins, B. Holl, T. Appourchaux, K. Belkacem, D. Bossini, K. Brogaard, M.‐J. Goupil, J. Montalbán, A. Noels, F. Anders, T. Rodrigues, G. Piotto, D. Pollacco, H. Rauer, C. Allende Prieto, P. P. Avelino, C. Babusiaux, C. Barban, B. Barbuy, S. Basu, F. Baudin, O. Benomar, O. Bienaymé, J. Binney, J. Bland‐Hawthorn, A. Bressan, C. Cacciari, T. L. Campante, S. Cassisi, J. Christensen‐Dalsgaard, F. Combes, O. Creevey, M. S. Cunha, R. S. Jong, P. Laverny, S. Degl'Innocenti, S. Deheuvels, É. Depagne, J. Ridder, P. Di Matteo, M. P. Di Mauro, M.‐A. Dupret, P. Eggenberger, Y. Elsworth, B. Famaey, S. Feltzing, R. A. García, O. Gerhard, B. K. Gibson, L. Gizon, M. Haywood, R. Handberg, U. Heiter, S. Hekker, D. Huber, R. Ibata, D. Katz, S. D. Kawaler, H. Kjeldsen, D. W. Kurtz, N. Lagarde, Y. Lebreton, M. N. Lund, S. R. Majewski, P. Marigo, M. Martig, S. Mathur, I. Minchev, T. Morel, S. Ortolani, M. H. Pinsonneault, B. Plez, P. G. Prada Moroni, D. Pricopi, A. Recio‐Blanco, C. Reylé, A. Robin, I. W. Roxburgh, M. Salaris, B. X. Santiago, R. Schiavon, A. Serenelli, S. Sharma, V. Silva Aguirre, C. Soubiran, M. Steinmetz, D. Stello, K. G. Strassmeier, P. Ventura, R. Ventura, N. A. Walton, C. C. Worley   +104 more
wiley   +1 more source

UGC 7639: A Dwarf Galaxy in the Canes Venatici I Cloud

Advances in Astronomy, Volume 2015, Issue 1, 2015., 2015
We want to get insight into the formation mechanism and the evolution of UGC 7639, a dwarf galaxy in the Canes Venatici I Cloud (CVnIC). We used archival multiwavelength data to constrain its global properties. Ultraviolet images show that UGC 7639 inner regions are composed mostly by young stellar populations.
L. M. Buson, D. Bettoni, P. Mazzei, G. Galletta, Duncan Forbes   +4 more
wiley   +1 more source

A search for diffuse bands in the circumstellar envelopes of post-AGB stars

, 2007
In this work we present the results of a systematic search for diffuse bands (DBs, hereafter) in the circumstellar envelopes of a carefully selected sample of post-AGB stars.
Allamandola, Arellano, Arkhipova, Bakker, Bujarrabal, Clube, Cohen, Cox, Cox, Crawford, D. A. García Hernández, de Jong, Desmurs, Douglas, Drimmel, Ehrenfreund, Ehrenfreund, Fernie, Fernández de Córdoba, Fitzgerald, Foing, Fujii, Fulara, Galazutdinov, García-Lario, García-Lario, García-Lario, Gauba, Gauba, Gauba, Guarinos, Guarinos, Heap, Heger, Herbig, Herbig, Hrivnak, Hrivnak, Hrivnak, Hrivnak, Hrivnak, Hrivnak, Hrivnak, Hu, Hu, Iglesias-Groth, Iglesias-Groth, Jenniskens, Kendall, Kerr, Klochkova, Klochkova, Klochkova, Krelowski, Krelowski, Krelowski, Kwok, Kwok, Le Bertre, Le Bertre, Le Bertre, Leger, Lewis, M. A. Satorre, Maas, Malfait, Mauron, McCall, Megier, Meixner, Merrill, N. L. J. Cox, O. Suárez, Oudmaijer, P. García Lario, Parthasarathy, Pottasch, Prichet, R. Luna, Reddy, Reddy, Reed, Reyniers, Ruiterkamp, Salama, Salama, Sarre, Sarre, Scarrott, Snow, Snow, Suárez, te Lintel Hekkert, Thorburn, Torres-Peimbert, Turner, Van de Steene, Van der Veen, Van der Zwet, Van Winckel, Van Winckel, Volk, Weselak, Zacs, Zacs, Zacs, Zacs   +106 more
core   +2 more sources

The Natural Science Underlying Big History

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
Nature’s many varied complex systems—including galaxies, stars, planets, life, and society—are islands of order within the increasingly disordered Universe. All organized systems are subject to physical, biological, or cultural evolution, which together comprise the grander interdisciplinary subject of cosmic evolution.
Eric J. Chaisson, Lukas Kratochvil
wiley   +1 more source

The 2200 A bump and the UV extinction curve

, 2012
The 2200 A bump is a major figure of interstellar extinction. Extinction curves with no bump however exist and are, with no exception, linear from the near-infrared down to 2500 A at least, often over all the visible-UV spectrum.
Bondar, Bradley, Cardelli, Cecchi-Pestellini, Divan, Désert, Fitzpatrick, Gordon, Herbig, Li, Li, Mulas, Nandy, Papoular, Savage, Schalén, Seaton, Steglich, Wegner, Whitford, Wickramasinghe, Wu, Yastrebov, Zagury, Zagury, Zagury, Zagury, Zagury, Zagury, Zagury, Zagury, Zagury, Zagury, Zonca   +33 more
core   +1 more source

CCD SDSS gr Photometry of Poorly Studied Star Clusters in the Large Magellanic Cloud

International Scholarly Research Notices, Volume 2014, Issue 1, 2014., 2014
We present for the first time CCD SDSS gr photometry, obtained at the Gemini South telescope with the GMOS attached, of stars in the field of the poorly studied star clusters NGC1768, HS 85, SL 676, NGC2107, NGC2190, and SL 866, which are distributed in the main body of the Large Magellanic Cloud.
Andrés E. Piatti, M. Marconi, L. Pulone
wiley   +1 more source

The Mira-based distance to the Galactic centre [PDF]

, 2018
Mira variables are useful distance indicators, due to their high luminosities and well-defined period-luminosity relation. We select 1863 Miras from SAAO and MACHO observations to examine their use as distance estimators in the Milky Way.
Casagrande, Luca, Nataf, David M., Qin, Wenzer, Wood, Peter R., Zakamska, Nadia   +4 more
core   +2 more sources

The Study of Nebular Emission on Nearby Spiral Galaxies in the IFU Era

Advances in Astronomy, Volume 2013, Issue 1, 2013., 2013
A new generation of wide‐field emission‐line surveys based on integral field units (IFU) is allowing us to obtain spatially resolved information of the gas‐phase emission in nearby late‐type galaxies, based on large samples of HII regions and full two‐dimensional coverage.
Fernando Fabián Rosales-Ortega, José Manuel Vílchez Medina   +1 more
wiley   +1 more source

The Optical Gravitational Lensing Experiment. Is Interstellar Extinction Toward the Galactic Center Anomalous?

, 2002
Photometry of the Galactic bulge, collected during the OGLE-II microlensing search, indicates high and non-uniform interstellar extinction toward the observed fields.
A. Udalski, Mizerski T., Ortolani S., Paczynski B., Paczynski B., Schultheis M., Stanek K. Z., Udalski A., Udalski A.   +8 more
core   +1 more source

A Slowly Pulsating Run‐Away B Star at High Galactic Latitude Ejected From a Spiral Arm

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT We report the discovery of the young B6 V run‐away star LAMOST J083323.18 + 430825.4, 2.5 kpc above the Galactic plane. Its atmospheric parameters and chemical composition are determined from LAMOST spectra, indicating normal composition. Effective temperature (Teff$$ {T}_{\mathrm{eff}} $$ = 14,500$$ \mathrm{14,500} $$ K) and gravity (logg ...
Ulrich Heber, Maximilian Halenke, Aakash Bhat, Veronika Schaffenroth   +3 more
wiley   +1 more source