Results 81 to 90 of about 14,223 (165)

VEGA: a visible spectrograph and polarimeter for CHARA

, 2006
n/a, SPIE 6268, p. 119 (2006)International audienceWe describe a project for the installation of a visible focal instrument at the CHARA Array, named VEGA for Visible spEctroGraph and polArimeter.
Rousselet-Perraut, K., Mérand, Antoine, Tallon-Bosc, Isabelle, Sturmann, Laszlo, Stehle, C., S. Lagarde, R. Petrov, Brummelaar, Theo, Ten, Marcotto, Aurélie, Tallon-Bosc, I., Roussel, A., Le Bouquin, J.-B., Hénault, F., D. Mourard, Berlioz-Arthaud, P., Merlin, G., Nardetto, Nicolas, Kervella, Pierre, P. Kervella, Ten Brummelaar, T., Mcalister, H.A., Mourard, Denis, Weigelt, G., Sturmann, Judit, L. Sturmann, Y. Bresson, F. Hénault, Mcalister, H., N. Nardetto, J.-M. Clausse, Blazit, Alain, Bresson, Yves, P. Stee, Bonneau, Daniel, Sturmann, L., A. Marcotto, Domiciano De Souza, A., Rousselet-Perraut, Karine, Nardetto, N., H. A. McAlister, Jankov, S., A. Roussel, Mérand, A., Koubsky, P., K. Rousselet-Perraut, Stee, Philippe, Bresson, Y., Kervella, P., Foy, R., A. Blazit, Clausse, Jean-Michel, Marcotto, A., A. Mérand, Clausse, J.-M., Stee, P., Harmanec, P., Bosio, S., D. Bonneau, Petrov, R.G., Lagarde, S., Mathias, P., G. Merlin, Blazit, A., Petrov, R., Petrov, Romain, S. Bosio, T. ten Brummelaar, Mourard, D., Bonneau, D., Sturmann, J., J. Sturmann, I. Tallon-Bosc   +71 more
core   +1 more source

Nutritional studies of Chara corallina [PDF]

, 2013
Physico-chemical analysis of the pond water supporting growth of Chara corallina and of those grown in different culture media in the laboratory conditions have been carried out. The physico-chemical parameters of the water of Napli forest and P.N. Mehra
Singh, Uday Bhan, Ahluwalia, A S, Thakur, R K, Verma, Ravish   +3 more
core  

Harnessing Chara globularis: Sustainable biomass harvest for water quality management and organic fertilizer production in Lake Titicaca

Manglar
Chara globularis, a submerged macroalga dominant in high-Andean lakes, generates controversial effects on freshwater ecosystems. Although its dense coverage alters water chemistry and reduces biodiversity, its abundant biomass offers an opportunity for ...
Angel Canales-Gutiérrez, Marisol Chambi-Alarcón, Gelvi Canales-Manchuria   +2 more
doaj   +1 more source

Orbits and Dynamical Masses for Six Binary Systems in the Hyades Cluster

The Astrophysical Journal
We report long-baseline interferometric observations with the CHARA Array that resolve six previously known double-lined spectroscopic binary systems in the Hyades cluster, with orbital periods ranging from 3 to 358 days: HD 27483, HD 283882, HD 26874 ...
Guillermo Torres, Gail H. Schaefer, Robert P. Stefanik, David W. Latham, Andrew F. Boden, Narsireddy Anugu, Jeremy W. Jones, Robert Klement, Stefan Kraus, Cyprien Lanthermann, John D. Monnier   +10 more
doaj   +1 more source

Antimicrobial activity of bioactive compounds extracted from Chara globularis Thuill

Journal of Applied Pharmaceutical Research
Background: The algae, a vastly diversified group of species on Earth, offer numerous benefits to humanity. Chara globularis is one such green alga that contains potential bioactive compounds.
M P Jeevitha, Somashekar G. Malammanavar   +1 more
doaj   +1 more source

Precise Age for the Binary HD 21278 in the Young α Persei Cluster

The Astrophysical Journal
We present a study of the double-lined spectroscopic binary HD 21278 that contains one of the brightest main-sequence stars in the young α Persei open cluster. We analyzed new spectra and reanalyzed archived spectra to measure precise new radial velocity
Christopher A. Danner, Eric L. Sandquist, Gail H. Schaefer, Luigi R. Bedin, Christopher D. Farrington, Cyprien Lanthermann, Stefan Kraus, Robert Klement, Narsireddy Anugu, John D. Monnier, Jerome A. Orosz, Isabelle Codron, Tyler Gardner, Mayra Gutierrez, Benjamin R. Setterholm, Jeremy Jones, Becky Flores   +16 more
doaj   +1 more source

Interferometric Survey of Stellar Parameters: Mass of the metallic A-type binary β Aur

Astronomy & Astrophysics
Context. Long-baseline optical interferometry provides spatially resolved observations of close binaries, complementing spectroscopic and photometric constraints on stellar parameters. Aims. With the capabilities of the new visible CHARA/SPICA instrument
Jonák J., Mourard D., Monnier J. D., Hoin S., Brož M., Oplištilová A., Kubiak K. A., Ebrahimkutty N., Ibañez-Bustos R. V., Nowacki H., Vrard M., Bailleul M., Bério P., Dejonghe J., Ligi R., Morand F., Nardetto N., Salabert D., Deheuvels S., Domiciano de Souza A., Meilland A., Perraut K., Wittkowski M., Kraus S., Anugu N., Gutierrez M.   +25 more
doaj   +1 more source

CHARA Near-infrared Imaging of the Yellow Hypergiant Star ρ Cassiopeiae: Convection Cells and Circumstellar Envelope

The Astrophysical Journal
Massive evolved stars such as red supergiants and hypergiants are potential progenitors of Type II supernovae, and they are known for ejecting substantial amounts of matter, up to half their initial mass, during their final evolutionary phases.
Narsireddy Anugu, Fabien Baron, John D. Monnier, Douglas R. Gies, Rachael M. Roettenbacher, Gail H. Schaefer, Miguel Montargès, Stefan Kraus, Jean-Baptiste Le Bouquin, Matthew D. Anderson, Theo ten Brummelaar, Isabelle Codron, Christopher D. Farrington, Tyler Gardner, Mayra Gutierrez, Rainer Köhler, Cyprien Lanthermann, Ryan Norris, Nicholas J. Scott, Benjamin R. Setterholm, Norman L. Vargas   +20 more
doaj   +1 more source

Chara: oogone

, 2016
Mostra uma imagem de Chara (espécies identificadas sem certeza) species identity not certain), mas pode ser resíduo do estado oogone de uma alga charophycean.
Patterson, David, Bahr, Michele
core   +1 more source

Nuclear diversity in Charophyceae revealed by fluorescence staining and its implications for genome size estimation. [PDF]

Planta
Böhm J, Peters J, Herburger K, Schubert H.   +3 more
europepmc   +1 more source