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light-years wide, it is only 8,000 light-years from our Galaxy's disk. It is careening toward our Galaxy at more than 150 miles per second, aimed to strike...

the interstellar medium (the hydrogen and helium gas that permeates the galaxy) by the solar wind. Although electrically neutral atoms from interstellar...

Cirasuolo; J.S. Dunlop; J.A. Peacock; D. Farrah et al. (April 2010). "X-ray groups and clusters of galaxies in the Subaru-XMM Deep Field". Monthly Notices...

of light-years, depending on the size of the associated object such as a galaxy. Once an entity, source, or object [such as a corona or coronal cloud] has...

jets in the Galaxy” Annual Review of Astronomy and Astrophysics, 37, 409 Mirabel, I.F. & Rodríguez, L.F. (1998) “Microquasars in our Galaxy” Nature, 392...

Shintaro Koshida et al. (March 1, 2006). "Reverberation Measurements of the Inner Radius of the Dust Torus in Nearby Seyfert 1 Galaxies". The Astrophysical...

on the right record emission events for AT2018cow. The first shows the galaxy Z 137-068. The second down on the right has two markers ending close to...

produced a matched trio of images of the central region of our Milky Way galaxy. Each image shows the telescope's different wavelength view of the galactic...

the human eye." "[H]igh-resolution (0.1") observations of the Seyfert 2 galaxy NGC 5728 with the Hubble Space Telescope", in the images at right, show...

places this star at the high temperature end of the cyan band. "The spiral galaxy, Messier 83, NGC 5236 [is shown in the image at right]. [The t]ri-colour...

(Alcock et al. 1999)." "It is important to study the stellar populations of nearby galaxies like the LMC in order to understand the processes of galaxy evolution...

uncommonly high speed (about 130 km/s (81 mi/s)) relative to the Milky Way galaxy's ambient gas. Mira itself is seen as a small white dot inside a blue bulb...

called a galaxy. Def. any galaxy, considerably smaller than the Milky Way, that has only several billions of stars is called a dwarf galaxy. Def. a small...

rays that originate predominantly from super nova explosions within our galaxy. Interactions between these high energy cosmic rays and the Earth's atmosphere...

in the photo are supermassive black holes, which lie at the hearts of galaxies and contain 100,000 to 10 billion times the mass of the sun." "It can be...

the only nearby galaxy to show evidence for superluminal motion." "This discovery goes a long way towards confirming that radio galaxies, quasars and exotic...

important to study the stellar populations of nearby galaxies in order to understand the processes of galaxy 17 True or False, A new cosmogony predicts that...

trigonometric parallax of their movements relative to background stars or galaxies that are immobile within the resolution of the telescope used. When X-ray...

a very low mass M-type star which make up about 76% of all stars in our galaxy, the Milky Way. Other stars with larger masses, about ten times that of...

group of galaxies after HCG 92." "To that end we used the very compact 375-m array of the Australia Telescope Compact Array (ATCA; Frater et al. 1992)1...

et al., 1981) may indicate material originating from WC stars. Moreover, as there is a strong gradient in the distribution of WC stars in the Galaxy, a...

astro-ph / 0604076 v1, 4 Apr 2006. Joe Wolf at al. Accurate masses for dispersion-supported galaxies. Monthly Notices of the Royal Astronomical Society...

witnessed a supernova soon after it exploded in the Messier 82, or M82, galaxy. Telescopes across the globe and in space turned their attention to study...

are multiple images of the same galaxy, duplicated by the gravitational lens effect of the cluster of yellow galaxies near the middle of the photograph...

that exist on the edges of galaxies." "Lying 50 000 light-years from Earth, in the outer reaches of our Milky Way galaxy, NGC 6934 is home to some of...

old stellar systems, such as globular clusters, spiral galaxy bulges and elliptical galaxies. They are prominent on ultraviolet images. The hot subdwarfs...

number of dwarf galaxies surrounding the Galaxy like the electrons in the oxygen atom. The tight group of galaxies, consisting of the Galaxy and the Large...

Ota; Mamoru Doi; Masaru Hamabe et al. (August 20, 2004). "Subaru Deep Survey. VI. A Census of Lyman Break Galaxies at z ≃ 4 and 5 in the Subaru Deep Fields:...

first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies. It is...

BSGMODEL: The Bahcall-Soneira Galaxy Model Bahcall, J. N. http://ascl.net/9904.001 BSGMODEL: The Bahcall-Soneira Galaxy Model Bahcall, J. N. http://ascl...

assessed using the Hubble scheme: Probably the earliest classification of galaxies "is based on the forms of the photographic images." "About 3 per cent are...

The "star formation process happens very quickly and in regions of the Galaxy that are difficult to study observationally." Nonaxisymmetric "magnetic...

Astrophysics: 19. http://arxiv.org/abs/1403.1275. Retrieved 2014-04-17.  The Daily Galaxy via the Alma Observatory (March 7, 2014). Beta Pictoris: A Young, Violent...

travel with velocities so high that they exceed the escape velocity of the Galaxy." "A multinational team of astronomers led by Dr Stephan Geier from the...

analogue of electrons at the level of galaxies. However the ratio of the minimum galaxy mass of a normal galaxy to the mass of a typical globular cluster...

much larger gravitationally bound structure, such as a star cluster or a galaxy. Historically, stars have been important to civilizations throughout the...

JWST will be in order to understand the initial stages of the universe, galaxy formation as well as the formations of stars and planets, and the origins...

Van Eck et al. 2003). This has modified the estimates of the amount of s-lead produced in the Galaxy before the birth of the Sun (Gallino et al 1998), and...

binaries and multiple gaseous object systems including clusters, galaxies, and galaxy clusters. Stellar classification is a classification of stars based...

size of Jupiter. Stars/Nova-likes Michelle Starr (12 August 2019). "Our Galaxy's Supermassive Black Hole Has Emitted a Mysteriously Bright Flare". Science...

the interstellar medium (the hydrogen and helium gas that permeates the galaxy) by the solar wind. Although electrically neutral atoms from interstellar...

galaxies for each redshift bucket with a uniform distribution, and computing the number of visible galaxies (those not covered by foreground galaxies)...

increase in the intensity of high-energy electrons from elsewhere in the galaxy diffusing into our solar system from outside ... [while] the [solar] wind...

keV stand for 103 electron volts. Compact groups of galaxies are tight associations of galaxies. Their compactness suggests extremely short crossing...

such stars are present in the old stellar populations of all galaxies (but see Foss et al. 1991), there is good reason to believe that Type Ia supernovae...

found only electrons streaming into the heliosphere from elsewhere in the galaxy. Usually the separation of charge carriers, such as electrons and protons...

responsible for the production of B and Be throughout the history of the Galaxy." Def. "an energetic particle originating outside our solar system" is called...

Second, they are dependent on our special place at the edge of the Milky Way galaxy and did not suggest the radiation is isotropic. Moreover, they would yield...

massive galaxies; these data also suggest the presence of unseen mass." "Even if gaseous bound systems of galactic mass can form, the types of galaxy they...

process that provided light neutron-capture elements in the very early Galaxy." "A comparison of the heavy-element abundance distribution in [AG Draconis]...