Sentences with phrase «about exoplanets from»

But most excitingly, the physical and chemical processes in brown dwarf and exoplanet atmospheres are the same; the identical processes, combined with the fact that brown dwarfs are much easier to study is the reason why we learn so much about exoplanets from brown dwarfs.

Not exact matches

A team of British and American astronomers used data from several telescopes on the ground and in space — among them the NASA / ESA Hubble Space Telescope — to study the atmosphere of the hot, bloated, Saturn - mass exoplanet WASP - 39b, about 700 light - years from Earth.

Here, we present optical observations of an exoplanet candidate, Fomalhaut b. Fomalhaut b lies about 119 astronomical units (AU) from the star and 18 AU of the dust belt, matching predictions of its location.

NESSI will focus on about 100 exoplanets, ranging from massive versions of Earth, called super-Earths, to scorching gas giants known as «hot Jupiters.»

NSF support helps astronomers make fundamental discoveries about the universe — from new exoplanets to the origins of galaxies — to provide vital training for next - generation researchers.

Today's technology means that we currently have very little information about what exoplanets are like beyond their presence, size and distance from star.

This year we head to Nashville to talk about dinosaurs ancient and otherwise, exoplanets, carbon cycling, pictures from Pluto, metallic hydrogen, photon pressure, and methane on Mars, among other things.

The photometry is obtained from onboard aperture photometry by means of large aperture masks, with a size and shape adapted to the large psf of its exoplanet focal plane, where 50 % of the flux is contained in an elliptical area of about 35 23.

According to various estimates, the star has about 1.7 times Sol's mass (RECONS), 1.8 times its equatorial diameter (JPL press release, 2001; T. Moon, 1985; Morossi and Malagnini, 1985, page 369; and Johnson and Wright, 1983, page 695), and about 10.7 times its visual luminosity and 9.845 its bolometric luminosity (NASA Star and Exoplanet Database, derived from of Kenneth R. Lang, 1980).

Andrew Howard, astronomer from the University of Hawaii's Institute for Astronomy, gave an illuminating talk about the hunt for exoplanets and the quest for another Earth.

This cool and dim, main sequence red dwarf (M1.5 Vne) may have about 37.5 to 48.6 percent of Sol's mass (Howard et al, 2014; RECONS; and Berger et al, 2006, Table 5, based on Delfosse et al, 2000), 34 to 39 percent of its diameter (Howard et al, 2014), and some 2.2 percent of its luminosity and 2.9 percent of its theoretical bolometric luminosity (Howard et al, 2014), correcting for infrared output (NASA Star and Exoplanet Database, derived using exponential formula from Kenneth R. Lang, 1980).

Andrew Howard, astronomer from the University of Hawaii's Institute for Astronomy, gave an illuminating talk about the hunt for exoplanets and the quest for another... Read more»

This is crucial as this is all we are going to get for exo - earths: we will not be able to build large enough telescopes to take detailed images of the surfaces of exoplanets — but we will still be able to learn about their atmospheres (and surfaces) from time - resolved observations!

The exoplanet Kepler - 186f is about 500 million light - years away from our planet, and is 10 percent bigger than it.

We analyze a sample of 1194 stars drawn from the California Planet Survey targets to determine the empirical functional form describing the likelihood of a star harboring a giant plane... ▽ More Correlations between stellar properties and the occurrence rate of exoplanets can be used to inform the target selection of future planet search efforts and provide valuable clues about the planet formation process.

This exoplanet is about 600 million light years away from Earth, and has a radius that is 2.4 times greater than our planet's.

It has about 12 to 13 percent of Sol's mass (Delfosse et al, 2000; RECONS; Torres et al, 1999; and NASA Star and Exoplanet Database, interpolated from McCarthy and Henry, 1993), with about 14 percent of its diameter but only 8/100, 000 th of its luminosity.

61 Virginis is a yellow - orange main sequence dwarf of spectral and luminosity type G5 - 6 V, with about 92 to 96 percent of Sol's mass (95 percent using the isochrone mass estimate of Valenti and Fischer, 2005; and NASA Star and Exoplanet Database, based on David F. Gray, 1992), 94 to 98 percent of its diameter (96 percent for Valenti and Fischer, 2005; Johnson and Wright, 1983, page 677; and NASA Star and Exoplanet Database, derived from the exponential formula of Kenneth R. Lang, 1980), and around 78 percent of its visual luminosity and nearly 81 percent of its theoretical bolometric luminosity, with infrared radiation (Sousa et al, 2008; Valenti and Fischer, 2005; NASA Star and Exoplanet Database, based on Kenneth R. Lang, 1980).

«This research shows that we need to get away from a simple paradigm of exoplanets, just thinking about stable equilibrium conditions and habitable zones.

The star has about 70 to 77 percent of Sol's mass (RECONS; and NASA Star and Exoplanet Database, interpolated from David F. Gray, 1992), 68 to 76 percent of its diameter (Johnson and Wright, 1983, page 701; and NASA Star and Exoplanet Database, derived using the power law formula from Kenneth R. Lang, 1980), and about 14.7 percent of its visual luminosity and 20.4 percent of its theoretical bolometric luminosity, correcting for infrared output (NASA Star and Exoplanet Database, derived using exponential formula from Kenneth R. Lang, 1980).

Lacaille 9352 may have 50 to 58 of Sol's mass (Demory et al, 2009, Table 4; RECONS; and NASA Star and Exoplanet Database, interpolation table of Henry and McCarthy, 1993), less than half (43 to 46 percent) of its diameter (Demory et al, 2009, Table 4; and NASA Star and Exoplanet Database, derived from the power law formula of Kenneth R. Lang, 1980), 1.1 percent of its visual luminosity and 3.5 percent of its bolometric luminosity (NASA Star and Exoplanet Database, derived from the exponential formula of Kenneth R. Lang, 1980), and only about one tenth to 60 percent of Sol's abundance of elements heavier than hydrogen («metallicity»)(Demory et al, 2009, Table 4).

This artist's view shows the hot Jupiter exoplanet 51 Pegasi b, orbits a star about 50 light - years from Earth in the constellation of Pegasus (The Winged Horse).

In other research around atmospheric dynamics of tidally locked exoplanets, there could be a situation where the world has efficient «air conditioning» — hot air from one hemisphere is distributed about the planet in such a way to balance global temperatures.

Learn about the discovery of exoplanets in the TRAPPIST - 1 system in this 2017 video from NASA's Jet Propulsion Laboratory.

You can determine this, given enough data about the exoplanet, based on how much energy it receives from its parent star and how far away it is in orbit, and then by comparing that with what life needs to flourish.

«This research shows that we need to get away from a simple paradigm of exoplanets, just thinking about stable equilibrium conditions and habitable zones,» said Wordsworth.

Three - dimensional (3D) planetary general circulation models (GCMs) derived from the models that we use to project 21st Century changes in Earth's climate can now be used to address outstanding questions about how Earth became and remained habitable despite wide swings in solar radiation, atmospheric chemistry, and other climate forcings; whether these different eras of habitability manifest themselves in signals that might be detected from a great distance; whether and how planets such as Mars and Venus were habitable in the past; how common habitable exoplanets might be; and how we might best answer this question with future observations.

About Blog Sky & Tel covers the latest night - sky events, astronomy news, astrophotography and observing tips.Keep up with the latest on exoplanets - from hot Jupiters to super-Earths and Earth - like planets, the hunt for the next pale blue dot continues.