Sentences with phrase «dwarf companion»

In all, the team found 17 candidate brown dwarf companions to red dwarf stars, one brown dwarf pair, and one brown dwarf with a planetary companion.

Our discoveries include 24 new L dwarf companions and one known L dwarf not previously identified as a companion.

Looking in the vicinity of the survey stars, researchers not only found several very - low - mass brown dwarf companions, but also three giant planets.

Sirius A is substantially larger than Sol, although its white dwarf companion B is smaller than Jupiter (more from ESO).

H. Bond (STSci), R. Ciardullo (PSU), WFPC2, HST, NASA — larger image (Gacrux may have a white dwarf companion B, a remnant stellar core that has already cast off its outer gas layers, like planetary nebula NGC 2440.)

Its red dwarf companion B was first detected through astrometric perturbations of Star A's motion in 1976 by Sarah Lee Lippincott and J.J. Lanning.

Recently, astronomers detected a brown dwarf companion of HR 4374 (also listed in the Henry Draper catalogue as HD 98230) which has been designated by its discoverers as HD 98230 B; this substellar object has a minimum mass equivalent to at least 37 Jupiter - sized planets but moves in a very close orbit of only 0.06 astronomical units (closer than Mercury) to its host star with a period (or local «year») of less than four days.

PSR J1713 +0747, as it is known, has a tiny white dwarf companion star, and the two orbit each other exceptionally predictably.

We calibrate our formula using 44 wide binaries containing an F, G, K, or early M primary of known metallicity and a mid - to late - M dwarf companion.

We used NaCo at VLT to explore t... ▽ More In anticipation of the VLT / SPHERE planet imager guaranteed time programs, we have conducted a preparatory survey of 86 stars between 2009 and 2013 in order to identify new faint comoving companions to ultimately carry out a comprehensive analysis of the occurence of giant planets and brown dwarf companions at wide (10 - 2000 AU) orbits around young, solar - type stars.

Close encounter Tracing the trajectory of the star and its brown dwarf companion back in time, Mamajek's team found with 98 % confidence that Scholz's star passed within the Solar System's Oort cloud, a reservoir of comets, about 70,000 years ago.

Finally, we analyze the sensitivity of our data to additional closer - in companions and reject the possibility of other massive brown dwarf companions down to 4 - 5 AU.

The grouping of these galaxies around the Milky Way Galaxy is mimicked in the case of the Andromeda Galaxy, which is also accompanied by several dwarf companions.

This Hubble image also shows white dwarf companion Sirius B, at lower left (more).

We detect a faint spiral - like feature in the SW that can be interpreted as the scattering surface of the bottom side of the disk, if the disk is tidally truncated by the M - dwarf companion currently seen at a projected distance of ~ 119 au.

Abstract: In a search for common proper motion companions using the VISTA Hemisphere Survey and 2MASS catalogs we have identified a very red (J - Ks = 2.47 mag) late - L dwarf companion of a previously unrecognized M dwarf VHS J125601.92 - 125723.9, located at a projected angular separation of 8.06» + / -0.03».

Aldebaran has a relatively distant, red dwarf companion B that is currently separated by about 607 AUs (semi-major axis of 30.4» at 65.1 ly).

From low - resolution optical and near - IR spectroscopy we classified the primary and the companion as an M7.5 +... ▽ More In a search for common proper motion companions using the VISTA Hemisphere Survey and 2MASS catalogs we have identified a very red (J - Ks = 2.47 mag) late - L dwarf companion of a previously unrecognized M dwarf VHS J125601.92 - 125723.9, located at a projected angular separation of 8.06» + / -0.03».

After their data were analyzed, the researchers discovered the telltale signatures of three additional pulsars and their white dwarf companion stars.

The Sun, the 12 brightest stars of the Northern Hemisphere and the white dwarf companion stars to Sirius and Procyon are shown.

Abstract: In anticipation of the VLT / SPHERE planet imager guaranteed time programs, we have conducted a preparatory survey of 86 stars between 2009 and 2013 in order to identify new faint comoving companions to ultimately carry out a comprehensive analysis of the occurence of giant planets and brown dwarf companions at wide (10 - 2000 AU) orbits around young, solar - type stars.

It turns out that even if we do not reach the deepest sensitivity for a single star, the sheer volume of our sample allowed us to obtain an unprecedented statistical snapshot of young exoplanets and brown dwarf companions in Orion.»

Previous studies show that it takes about 68 days for the pulsar to orbit its white dwarf companion, meaning they share an uncommonly wide orbit.

However, despite several efforts, only a few candidate systems with tentative evidence for brown - dwarf companions had previously been found.

This turns out to be non-uniform, since this cool sub-stellar object is strongly irradiated by its much hotter white dwarf companion.

Astronomers have detected a sub-stellar object that used to be a star, after being consumed by its white dwarf companion.

© Estate of John Whatmough — larger image (Artwork from Extrasolar Visions, used with permission from Whatmough) Glowing red through gravitational contraction, the candidate brown dwarf companion to Proxima Centauri is depicted with two moons (one eclipsing the flare star) with distant Alpha Centauri A and B at upper right, as imagined by Whatmough.

In 2006, astronomers discovered a very dim («mid-range»), red dwarf companion to HD 189733 A of spectral and luminosity type M V. Observed at a separation of 216 AUs from Star A, the companion star has a clockwise orbit that is nearly perpendicular to the orbital plane of transiting planet b around Star A (HD 189733 b or Ab).

We also examine the entire population of ultracool (> M7) dwarf companions and conclude that while some are loosely bound, most are unlikely to be disrupted over the course of $ \ sim $ 10 Gyr.

No planetary or brown dwarf companions have been founded as yet (Lagrange et al, 2009).

Our search increases the number of ultracool M dwarf companions wider than 300 AU by 88 % and increases the number of L dwarf companions in the same separation range by 96 %.

Finally, we resolve our new L dwarf companion to HIP 6407 into a tight (0.13 arcsecond, 7.4 AU) L1 + T3 binary, making the system a hierarchical triple.

We present new high - contrast data obtained during the commissioning of the SPHERE instrument at... ▽ More GJ758 B is a brown dwarf companion to a nearby (15.76 pc) solar - type, metal - rich (M / H = +0.2 dex) main - sequence star (G9V) that was discovered with Subaru / HiCIAO in 2009.

We aim at investigat... ▽ More Direct imaging has led to the discovery of several giant planet and brown dwarf companions.

The comparison of the two datasets suggests rapid evolution of the inner regions of the disk, potentially driven by the interaction with the close - in M - dwarf companion, around which no polarimetric signal is detected.

12 systems were resolved as new binaries, including the discovery of a new white dwarf companion to the star HD8049.

Abstract: Direct imaging has led to the discovery of several giant planet and brown dwarf companions.

Abstract: GJ758 B is a brown dwarf companion to a nearby (15.76 pc) solar - type, metal - rich (M / H = +0.2 dex) main - sequence star (G9V) that was discovered with Subaru / HiCIAO in 2009.

The Milky Way, M33, and the Andromeda Galaxy plus about 40 dwarf companions, comprise what is known as the «Local Group.»

Thus, US 708 could have originally resided in an ultra compact binary system, transferring helium to a massive white dwarf companion, ultimately triggering a thermonuclear explosion of a type Ia supernova.

Star Ba may have a brown dwarf companion (Bb or HD 98230 b) in a «torch orbit,» with an average separation of 0.06 AU in a highly circular orbit (e = 0.00) whose period is completed within four days (see Extrasolar Planets Encyclopaedia).