-
2019-06-12
3f3b5270000b5b0cf3833d3466444886da2cf068
23
Discoveries of exoplanets
14
/wiki/discoveries%20of%20exoplanets
Lacaille 9352
71
/wiki/lacaille%209352
List of nearest exoplanets
1
/wiki/list%20of%20nearest%20exoplanets
Luyten's Star
172
/wiki/luyten's%20star
Struve 2398
116
/wiki/struve%202398
Wolf 359
37
/wiki/wolf%20359
red dwarf
2
/wiki/red%20dwarf
Discoveries of exoplanets
Lacaille 9352
List of nearest exoplanets
Luyten's Star
Struve 2398
Wolf 359
red dwarf
List of nearest exoplanets
2023-04-5
fb44a22b2b545a93a1d250725bae0ef2c990dcd5
/feed/2023/04/5/scientists-discover-bursts-of-radiation-in-radio-wavelengths-on-the-exoplanet-yz-ceti-b-which-is-part-of-yz-ceti-the-s
Scientists discover bursts of radiation in radio wavelengths on the exoplanet YZ Ceti b, which is part of YZ Ceti. The studies are published in the "Nature Astronomy" journal.
1680845369
2023-04-5
c9f07c92397b8c575de89a669c2bae505e6b71a5
9
Discoveries of exoplanets
1
/feed/2023/04/5/scientists-discover-bursts-of-radiation-in-radio-wavelengths-on-the-exoplanet-yz-ceti-b-which-is-part-of-the-yz-ceti-sy
Scientists discover bursts of radiation in radio wavelengths on the exoplanet YZ Ceti b, which is part of the YZ Ceti system. The studies are published in the "Nature Astronomy" journal.
2022-02-28
fc1ab170231493a2bded0ea65f18984225c0d017
/feed/2022/02/28/in-a-research-published-by-the-nature-journal-it-is-revealed-that-the-hot-jupiter-exoplanet-wasp-121b-has-metal-cloud
In a research published by the "Nature" journal, it is revealed that the Hot Jupiter exoplanet WASP-121b has metal clouds and raining gems.
1646096774
2022-02-28
777acaebbb36b0ab084cb4df5987e805e88db0be
/feed/2022/02/28/in-a-research-published-by-the-nature-journal-it-is-revealed-that-the-hot-jupiter-exoplanet-wasp-121b-has-metal-clouds
In a research published by the Nature journal, it is revealed that the Hot Jupiter exoplanet WASP-121b has metal clouds and raining gems.
1646075227
2022-02-28
d4529956493219e68d2c29211fd544884c5bc10f
81
Discoveries of exoplanets
1
/feed/2022/02/28/in-new-research-published-by-the-nature-journal-it-is-revealed-that-the-hot-jupiter-exoplanet-wasp-121b-has-clouds-of
In new research published by the "Nature" journal, it is revealed that the Hot Jupiter exoplanet WASP-121b has clouds of metal and rains gems.
2022-01-7
70864723e0344054de75c71689d3a3142c835c40
/feed/2022/01/7/researchers-from-the-university-of-bern-announces-the-discovery-of-toi-2257-b-an-eccentric-exoplanet-that-orbits-near-a
Researchers from the University of Bern announces the discovery of TOI-2257 b, an eccentric exoplanet that orbits near a red dwarf.
1641625569
2022-01-7
9d58628d2453aecb3e9669487fc4845cd5629cbd
36
Discoveries of exoplanets
red dwarf
2
/feed/2022/01/7/researchers-from-the-university-of-bern-announce-the-discovery-of-toi-2257-b-an-eccentric-exoplanet-that-orbits-near-a
Researchers from the University of Bern announce the discovery of TOI-2257 b, an eccentric exoplanet that orbits near a red dwarf.
2021-10-12
1d85ec17b64407860db1b3449fc811a18c3d6bec
27
Discoveries of exoplanets
1
/feed/2021/10/12/nasa-astronomers-announce-the-discovery-of-tic-257060897b-a-hot-jupiter-exoplanet-that-is-50-larger-and-30-less-massi
NASA astronomers announce the discovery of TIC 257060897b, a Hot Jupiter exoplanet that is 50% larger and 30% less massive than Jupiter. The discovery was made using the Transiting Exoplanet Survey Satellite.
2021-06-11
527bab42deafc705d791df033c87ab12e1e7f5c7
46
Discoveries of exoplanets
1
/feed/2021/06/11/a-group-of-scientists-from-nasa-s-jet-propulsion-laboratory-and-the-university-of-new-mexico-announces-that-water-clouds
A group of scientists from NASA's Jet Propulsion Laboratory and the University of New Mexico announces that water clouds are discovered on TOI-1231 b, a Neptune-like exoplanet that is located 90 light-years away from Earth.
2019-08-13
d24c7978235aa85f6bd5cbfb10c18612f7e2a3f6
9
List of nearest exoplanets
red dwarf
2
/feed/2019/08/13/three-super-earth-exoplanets-are-announced-orbiting-around-the-nearby-red-dwarf-gliese-1061-one-of-which-orbits-within
Three super-Earth exoplanets are announced orbiting around the nearby red dwarf Gliese 1061, one of which orbits within the star's habitable zone.
2019-08-1
6bbcf65466caa4446387c31db8d581e6e2fc30d2
9
List of nearest exoplanets
red dwarf
2
/feed/2019/08/1/astronomers-from-the-max-planck-institute-for-astronomy-announce-the-discovery-of-red-dwarf-star-gj-357-and-its-three-co
Astronomers from the Max Planck Institute for Astronomy announce the discovery of red dwarf star GJ 357 and its three confirmed exoplanets in the Hydra constellation, one of which (GJ 357 d) is highly likely to be a super-Earth planet located in the system's circumstellar habitable zone where life can exist. The discovery was made using NASA's Transiting Exoplanet Survey Satellite (TESS).
2018-03-16
de743c6614eb30987fd9516e0cfdef14feda2d7b
14
Discoveries of exoplanets
1
/feed/2018/03/16/european-astronomers-discover-eight-new-exoplanets-classified-as-hot-jupiters-as-part-of-the-wasp-project
European astronomers discover eight new exoplanets classified as Hot Jupiters as part of the WASP project.
2018-02-5
f03c0bf8e473278fe3fcae08173bf093ee8b47af
9
Discoveries of exoplanets
1
/feed/2018/02/5/scientists-using-data-from-the-chandra-x-ray-observatory-discover-new-exoplanets-in-galaxies-beyond-the-milky-way-for-th
Scientists using data from the Chandra X-ray Observatory discover new exoplanets in galaxies beyond the Milky Way for the first time.
2010-09-29
a20a159277cb48a525d69b71780d761848651149
25
Discoveries of exoplanets
red dwarf
2
/feed/2010/09/29/astronomers-discover-the-first-earth-analog-extrasolar-planet-that-may-be-capable-of-supporting-life-gliese-581-g-loca
Astronomers discover the first Earth analog extrasolar planet that may be capable of supporting life, Gliese 581 g, located within the habitable zone and orbiting Gliese 581, a red dwarf star twenty light years from the Solar System.
/feed/2019/06/12/a-study-on-exoplanet-populations-combining-decades-of-data-from-several-different-observatories-detects-118-possible-exo
Arxiv
12
46f234cd3b83133ca78ce3aea86602c8ea13cf34
6
https://arxiv.org/abs/1906.04644
Frequency of planets orbiting M dwarfs in the Solar neighbourhood
2019
The most abundant stars in the Galaxy, M dwarfs, are very commonly hosts to diverse systems of low-mass planets. Their abundancy implies that the general occurrence rate of planets is dominated by their occurrence rate around such M dwarfs. In this article, we combine the M dwarf surveys conducted with the HIRES/Keck, PFS/Magellan, HARPS/ESO, and UVES/VLT instruments supported with data from several other instruments. We analyse the radial velocities of an approximately volume- and brightness-limited sample of 426 nearby M dwarfs in order to search for Doppler signals of cadidate planets. In addition, we analyse spectroscopic activity indicators and ASAS photometry to rule out radial velocity signals corresponding to stellar activity as Doppler signals of planets. We calculate estimates for the occurrence rate of planets around the sample stars and study the properties of this occurrence rate as a function of stellar properties. Our analyses reveal a total of 118 candidate planets orbiting nearby M dwarfs. Based on our results accounting for selection effects and sample detection threshold, we estimate that M dwarfs have on average at least 2.39$^{+4.58}_{-1.36}$ planets per star orbiting them. Accounting for the different sensitivities of radial velocity surveys and Kepler transit photometry implies that there are at least 3.0 planets per star orbiting M dwarfs. We also present evidence for a population of cool mini-Neptunes and Neptunes with indications that they are found an order of magnitude more frequently orbiting the least massive M dwarfs in our sample.
A study on exoplanet populations combining decades of data from several different observatories detects 118 possible exoplanets orbiting nearby red dwarfs, including new discoveries around nearby stars Wolf 359, Lacaille 9352, Struve 2398 B, and Luyten's Star.