The Life and Work of Edward Emerson Barnard
... his sick bed long enough to note that the ring was still visible in the 40-inch telescope, though 'very thin' and with a satellite at each end. 'Without occultation it was almost impossible to see any trace of the ring on the sky,' he noted 'The condensations were feebly seen as slightly brighter pa ...
... his sick bed long enough to note that the ring was still visible in the 40-inch telescope, though 'very thin' and with a satellite at each end. 'Without occultation it was almost impossible to see any trace of the ring on the sky,' he noted 'The condensations were feebly seen as slightly brighter pa ...
CHaracterising ExOPlanets Satellite arXiv:1310.7800v1 [astro
... Space Agency. It will carry out follow-up measurements on transiting planets. This requires exquisite data that can be acquired only by a space-borne observatory and by well understood and mitigated sources of noise. Earth stray light is one of them which becomes the most prominent noise for faint s ...
... Space Agency. It will carry out follow-up measurements on transiting planets. This requires exquisite data that can be acquired only by a space-borne observatory and by well understood and mitigated sources of noise. Earth stray light is one of them which becomes the most prominent noise for faint s ...
the stebbins galaxy: the origins of interstellar medium studies
... the Galaxy, shows the Sun to be far from that center. 2) The measured distances to globular clusters show the Galaxy to be about 70,000 parsecs (200,000 light-years or so) in diameter (Shapley, 1930a: 221). This is about twice the modern figure for the luminous Galaxy. In his earlier publications, a ...
... the Galaxy, shows the Sun to be far from that center. 2) The measured distances to globular clusters show the Galaxy to be about 70,000 parsecs (200,000 light-years or so) in diameter (Shapley, 1930a: 221). This is about twice the modern figure for the luminous Galaxy. In his earlier publications, a ...
Slide 1
... • Incredibly dense! – Billions of tons per cubic inch – A marble made from neutron star material would weigh the same as the Earth Big Bang, Black Massive Things: Galaxies, Stars and Black Holes 51 Holes, No Math ...
... • Incredibly dense! – Billions of tons per cubic inch – A marble made from neutron star material would weigh the same as the Earth Big Bang, Black Massive Things: Galaxies, Stars and Black Holes 51 Holes, No Math ...
NGC 6231: a young open cluster under X-rays
... probably ‘hidden’ companion • There seems to be a link between Lx and Lbol if real, its origin is ???? ...
... probably ‘hidden’ companion • There seems to be a link between Lx and Lbol if real, its origin is ???? ...
Circumstellar dust emission from nearby Solar
... 10−5 (Paper I). Both stars exhibit detectable temperature minima at wavelengths around 100-300 µm due to a chromospheric temperature inversion akin to that of the sun. The resulting flux difference, when compared to stellar photospheric models, is equivalent to dust emission with a fractional lumino ...
... 10−5 (Paper I). Both stars exhibit detectable temperature minima at wavelengths around 100-300 µm due to a chromospheric temperature inversion akin to that of the sun. The resulting flux difference, when compared to stellar photospheric models, is equivalent to dust emission with a fractional lumino ...
EROs and submm galaxies: Expectations for FMOS in the
... These were selected to have R-K>5.5 from the optical/infrared data of T. Haynes et al. (2002). ...
... These were selected to have R-K>5.5 from the optical/infrared data of T. Haynes et al. (2002). ...
A Zoo of Galaxies - Portsmouth Research Portal
... The variety of different galaxies observed in the sky naturally caused people to wonder what they were. The scientific arguments surrounding this question at the start of the 20th century, are best represented perhaps, by the public debate held in 1920 between Heber Curtis and Harlow Shapley. Many o ...
... The variety of different galaxies observed in the sky naturally caused people to wonder what they were. The scientific arguments surrounding this question at the start of the 20th century, are best represented perhaps, by the public debate held in 1920 between Heber Curtis and Harlow Shapley. Many o ...
A Zoo of Galaxies
... The variety of different galaxies observed in the sky naturally caused people to wonder what they were. The scientific arguments surrounding this question at the start of the 20th century, are best represented perhaps, by the public debate held in 1920 between Heber Curtis and Harlow Shapley. Many o ...
... The variety of different galaxies observed in the sky naturally caused people to wonder what they were. The scientific arguments surrounding this question at the start of the 20th century, are best represented perhaps, by the public debate held in 1920 between Heber Curtis and Harlow Shapley. Many o ...
Quantitative constraints on starburst cycles in galaxies with stellar
... fiber aperture are also available from these catalogues. The reader is referred to Brinchmann et al. (2004) for a detailed description of how SFRs are derived. Briefly, star formation rates are estimated by fitting a grid of photo-ionization models to the observed [OIII], Hβ, Hα and [NII] line stren ...
... fiber aperture are also available from these catalogues. The reader is referred to Brinchmann et al. (2004) for a detailed description of how SFRs are derived. Briefly, star formation rates are estimated by fitting a grid of photo-ionization models to the observed [OIII], Hβ, Hα and [NII] line stren ...
Differential rotation on both components of the pre-main
... so convection zone depths. Barnes (2005) collates many of these results, finding that differential rotation rate is strongly related to surface temperature but only weakly correlated with rotation rate. Near fully convective M dwarfs (e.g. HK Aqr) exhibit very weak differential rotation, while early ...
... so convection zone depths. Barnes (2005) collates many of these results, finding that differential rotation rate is strongly related to surface temperature but only weakly correlated with rotation rate. Near fully convective M dwarfs (e.g. HK Aqr) exhibit very weak differential rotation, while early ...
A New Science Strategy for Space Astronomy and Astrophysics
... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee ...
... NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee ...
Type II SuperNova - University of Dayton
... In 1987 a supernova (designated SN1987A by astronomers) was observed in a nearby galaxy called the Large Magellanic Cloud. This was the first "nearby" supernova in the last 3 centuries, and for the first time astronomers not only observed the light show, but also detected 19 of the elusive neutrinos ...
... In 1987 a supernova (designated SN1987A by astronomers) was observed in a nearby galaxy called the Large Magellanic Cloud. This was the first "nearby" supernova in the last 3 centuries, and for the first time astronomers not only observed the light show, but also detected 19 of the elusive neutrinos ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.