Video Experimental Relacionado

Updated: Aug 1, 2026

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

Candidatos a estrellas de la pre-secuencia principal en la barra de la Gran Nube de Magallanes

Beaulieu1, Lamers, Grison

  • 1The EROS (Experience de Recherche d'Objets Sombres) collaboration: J. P. Beaulieu, P. Grison, R. Julien, C. Lanciaux, R. Ferlet, A. Vidal-Madjar, Institut d'Astrophysique de Paris, 98bis Boulevard, Arago, 75014 Paris, France. H. J. G. L. M. Lamers, Astronomical Institute, Princetonplein 5, NL-3584 CC Utrecht, Netherlands, and SRON Laboratory for Space Research, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands. E. Bertin, Institut d'Astrophysique de Paris, 98bis Boulevard, Arago, 75014 Paris, France, and ESO La Silla, casilla 19001, Santiago 19, Chile. E. Maurice and L. Prevot, Observatoire de Marseille, 2 place Le Verrier, 13248 Marseille 04, France. C. Gry, Laboratoire d'Astronomie Spatiale CNRS, Traversee du siphon, les trois lucs, 13120 Marseille, France. J. Guibert, O. Moreau, F. Tajhmady, Centre d'Analyse des Images de l'Institut National des Sciences de l'Univers, CNRS Observatoire de Paris, 61 Avenue de l'Observatoire, 75014 Paris, France. E. Aubourg, P. Bareyre, J. de Kat, M. Gros, B. Laurent, M. Lachieze-Rey, E. Lesquoy, C. Magneville, A. Milsztajn, L. Moscoso, F. Queinnec, C. Renault, J. Rich, M. Spiro, L. Vigroux, S. Zylberajch, CEA, DSM/DAPNIA, Centre d'etudes de Saclay, 91191 Gif-sur-Yvette, France. R. Ansari, F. Cavalier, M. Moniez, Laboratoire de l'Accelerateur Lineaire IN2P3, Centre d'Orsay, 91405 Orsay, France.

Science (New York, N.Y.)
|May 17, 1996
PubMed
Resumen

Se descubrieron siete estrellas masivas y luminosas de la pre-secuencia principal en la Gran Nube de Magallanes. Estas estrellas jóvenes ofrecen información crucial sobre las primeras etapas de la formación estelar en otras galaxias.

Más Videos Relacionados

Single-cell Screening Method for the Selection and Recovery of Antibodies with Desired Specificities from Enriched Human Memory B Cell Populations09:07

Single-cell Screening Method for the Selection and Recovery of Antibodies with Desired Specificities from Enriched Human Memory B Cell Populations

Published on: August 22, 2019

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves06:48

Surface Mapping of Earth-like Exoplanets using Single Point Light Curves

Published on: May 10, 2020

Videos de Conceptos Relacionados

Emission Spectra02:39

Emission Spectra

When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
Detection of Black Holes01:10

Detection of Black Holes

Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
Flame Photometry: Overview01:02

Flame Photometry: Overview

Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
Flame Photometry: Lab01:16

Flame Photometry: Lab

In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...