Sentences with word «photometry»

With high precision photometry of transiting planets and high precision Gaia parallaxes, the parallactic mass and radius uncertainties of stars become 1 % and 3 %, respectively.

The U.S. National Aeronautics and Space Administration's Kepler mission, launched on March 6, 2009, uses transit photometry from space to achieve unprecedented sensitivity for small planets with orbital periods of up to two years and should discover whether planets analogous to Earth are common or rare.

The Kepler photometry of the three stars with S index below 0.13 (KIC 2850378, KIC 11197517 and KIC 11241343) could be contaminated by background stars.

«William Borucki, of the NASA Ames Research Center in Mountain View, California,» won the astronomy prize for «conceiving the observational technique of transit photometry that raised the tantalizing prospect of sighting Earth - like planets orbiting other stars, and [for] leading the 25 - year - long development of the Kepler mission.»

The rotation periods delineate a tight sequence in the NGC6811 color - period diagram from ~ 1 day at mid... ▽ More We present rotation periods for 71 single dwarf members of the open cluster NGC6811 determined using photometry from NASA's Kepler Mission.

The companion was clearly visible both with IRDIS and IFS.We obtained photometry in four different bands as well as the astrometric position for the companion.

These planets stem from a systematic search of the K2 photometry for all dwarf stars observed by K2 in these fields.

Abstract: Early time - series photometry from NASA's Kepler spacecraft has revealed a planet transiting the star we term Kepler - 4, at RA = 19h02m27.68 s, Dec = +50:08:08.7.

Applying aperture photometry on the azimuthally averaged deconvolved PACS images and using a modified blackbody of the form Bν · λ − β, as expected for a grain emissivity Qabs ~ λ − β with β equal to 1.2 (representing amorphous carbon, Mennella et al. 1998), we derived a dust temperature between 108 ± 5 K at 20 ′ ′ and 40 ± 5 K at 180 ′ ′.

(iii) Far - infrared spectroscopy of dust and ice features will address uncertainties in the mass and composition of dust in galaxies, and the contributions of supernovae to the interstellar dust budget will be quantified by photometry and monitoring of supernova remnants in nearby galaxies.

We obtained photometry in three different spectral bands.

The data returned from Kepler are unique in terms of the number of stars observed, precision of photometry for time series observations, and the temporal extent of high duty cycle observations.

Here we combine K2 photometry with spectroscopy, adaptive optics imaging, and archival survey images to analyze two small planets orbiting the nearby, field age, M dwarfs K2 - 26 (EPIC 202083828) and K2 - 9.

We refit the transit events in the Kepler light curves for these planet cand... ▽ More We use the optical and near - infrared photometry from the Kepler Input Catalog to provide improved estimates of the stellar characteristics of the smallest stars in the Kepler target list.

Aperture photometry of the red standard star shows a maximum deviation of 1.4 % across the array in this filter.

(See a CCD field image of CM Draconis and comparison stars used in differential photometry from the Transits of Extrasolar Planets — TEP — Network of astronomers.)

We recently obtained new photometry of the four planets and low - resolution (R ~ 30) spectra of HR8799 d and e with the SPHERE instrument (paper III).

A.R. performed analysis of the multiband photometry fits to RW11 shock - cooling models.

Follow - up radial velocity measurements with th... ▽ More We present 44 days of high duty cycle, ultra precise photometry of the 13th magnitude star Kepler - 5 (KIC 8191672, Teff = 6300 K, logg = 4.1), which exhibits periodic transits with a depth of 0.7 %.

For an additional candidate, we present multi-color follow - up photometry during a subsequent time of eclipse, which reveals that this candidate consists of a blend of an eclipsing binary and a physically unassociated star.

As of DR6, PSF photometry uses the same PSF models (and sky background subtraction) for zero - point - fitting as is later used in cataloging.

Way, M.J., and A.N. Srivastava, 2006: Novel methods for predicting photometric redshifts from broadband photometry using virtual sensors.

We have combined Pan-STARRS1 (PS1) proper motions with optical $ - $ IR photometry from PS1, 2MASS and $ \ textit -LCB- WISE -RCB- $ to search for substellar members of the AB Dor Moving Group within $ \ approx $ 50 pc and... ▽ More Substellar members of young ($ \ lesssim $ 150 Myr) moving groups are valuable benchmarks to empirically define brown dwarf evolution with age and to study the low - mass end of the initial mass function.

At this time interest in the use of photoelectric photometry by amateurs was growing.

The occultation photometry timing is consistent with a circular orbit, at e < 0.01 (1 -LCB- \ sigma -RCB--RRB-, and e < 0.09 (3 -LCB- \ sigma -RCB--RRB-.

We analyze the different types of photometry reported by PS1, and use two types in our catalog to maximize both depth and accuracy.

Version 2 incorporates tiny cosmetic changes to match final published version, including a revised Figure 1 that uses the most recent AB Pic b photometry from Biller et al (2013)

Measuring the eccentricity of individual planets is only practical in favorable cases that are amenable to complementary techniques (e.g., radial velocities, transit timing variations, occultation photometry).

We identified several candidates around known stellar members using a combination of color selection and spectral energy distribution... ▽ More We have combined optical and NIR photometry from Pan-STARRS 1 and UKIDSS to search the young (5 - 10 Myr) star - forming region of Upper Scorpius for wide (~ 400-4000 AU) substellar companions down to ~ 5 Mjup.

We describe the construction of the EPIC, as well as modifications and short... ▽ More The K2 Mission uses the Kepler spacecraft to obtain high - precision photometry over ~ 80 day campaigns in the ecliptic plane.

This version adds Gaia DR1 photometry, updated PS1 astrometry, parallaxes from Liu et al (2016), comparisons to proper motions from the MoVeRS and LaTE - MoVeRS catalogs, more discussion of binaries, and minor adjustments to catalog membership.

Abstract: The Kepler Mission, launched on Mar 6, 2009 was designed with the explicit capability to detect Earth - size planets in the habitable zone of solar - like stars using the transit photometry method.

Members make a significant contribution to the understanding of asteroids particularly in the fields of astrometry and lightcurve photometry.

This paper describes the SFRS survey strategy, defines the sample, and presents the multi-band photometry collected to date.

For the brighter targets, CoRoT provides photometry in 3 different uncalibrated «colors» that can be used to reject planet candidates.

We combined photometry, medium / high - resolution spectroscopy, adaptive optics / speckle imaging and archival survey images to rule out any false positive detection scenarios, validate the planet, and further characterize the system.

Initial optical radial velocity data from McDonald Observatory confirmed that a planet might be present, and the team added photometry measurements from Lowell and five years of infrared observations from Hawaii, Kitt Peak and McDonald to rule out the possibility that the optical signal resulted from starspots or another masking phenomenon.

Called photometry, it detects the slight but regular dimming in a star's light when a planet transits in front of it.

Borucki was convinced that looking for planetary transits through photometry would be simpler and cheaper.

The VATT 1.8 m telescope's large aperture enables high - precision photometry even on the faintest EDEN / TS stars.

Multiwaveband photometry of the irradiated brown dwarf WD0137 — 349B.