CARMENES survey explained

The CARMENES survey (Calar Alto high-Resolution search for M-dwarfs with Exoearths with Near-infrared and optical Échelle Spectrographs) is a project to examine approximately 300 M-dwarf stars for signs of exoplanets with the CARMENES instrument on the Spanish Calar Alto's 3.5m telescope.^[1]

Operating since 2016, it aims to find Earth-sized exoplanets around 2 (Earth masses) using Doppler spectroscopy (also called the radial velocity method).^[2] More than 20 exoplanets have been found through CARMENES, among them Teegarden b, considered one of the most potentially habitable exoplanets.^{[3] [4]} Another potentially habitable planet found is Gliese 357 d.^[5]

Discoveries

Star	GJ	d [pc]	Sp.type	Planet	Porb[d]	M2sini[M<sub>⊕</sub>]
LP 729-54	...	22.00	M3.5 V	b	0.768377	2.34 (TESS)
				c	12.252131	6.29 (TESS)
TOI-1235	...	39.680	M0.5 V	b	3.444717	5.90 (TESS)
CD Ceti	1057	8.069	M5.0 V	b	2.29070	3.95
HD 79211	338 B	6.334	M0.0 V	b	24.45	10.0
TYC 6170-95-1 (EPIC 249893012)	...	325	G8 IV/V	b^*	3.5949	8.8 (K2)
				c^*	15.624	14.7 (K2)
				d^*	35.747	10 (K2)
LP 90-18 (GJ 3512)	3512	9.489	M5.5 V	b	203.59	147
				c	>1390	>54
Gliese 357	357	9.444	M2.5 V	b	3.93072	1.84 (TESS)
				c	9.1247	3.4
				d	55.661	6.1
LSPM J2116+0234	...	17.639	M3.0 V	b	14.451	13.6
Teegarden's Star	...	3.831	M7.0 V	b	4.9100	1.05
				c	11.409	1.11
BD+61 195	49	9.856	M1.5 V	b	13.851	5.6
K2-285	...	156	K2 V	b^*	3.47175	9.7 (K2)
				c^*	7.13804	16 (K2)
				d^*	10.4560	<6.5 (K2)
				e^*	14.7634	<10.7 (K2)
HD 119130	...	114.3	G3 V	b^*	16.9841	24
G 232-70	4276	21.35	M4.0 V	b	13.350	15.6
Barnard's Star	699	1.827	M3.5 V	b	232.8	3.2
Ross 1020	3779	13.748	M4.0 V	b	3.0232	8.0
LP 819-052	1265	10.255	M4.5 V	b	3.6511	7.4
HD 180617	752 A	5.912	M2.5 V	b	105.90	12.2
HD 147379	617 A	10.74	M0.0 V	b	86.54	24.7
Ross 1003	1148	11.00	M4.0 V	c	533	68
GX Andromedae	15 A	3.562	M1.0 V	c	7800	50

See also

List of exoplanet search projects

Notes and References

1. The CARMENES search for exoplanets around M dwarfs . 2022-04-03 . Astronomy and Astrophysics. 19 October 2020 . 642 . A173 . Nowak . G. . Luque . R. . Parviainen . H. . Pallé . E. . Molaverdikhani . K. . Béjar . V. J. S. . Lillo-Box . J. . Rodríguez-López . C. . Caballero . J. A. . Zechmeister . M. . Passegger . V. M. . Cifuentes . C. . Schweitzer . A. . Narita . N. . Cale . B. . Espinoza . N. . Murgas . F. . Hidalgo . D. . Osorio . M. R. Zapatero . Pozuelos . F. J. . Aceituno . F. J. . Amado . P. J. . Barkaoui . K. . Barrado . D. . Bauer . F. F. . Benkhaldoun . Z. . Caldwell . D. A. . Barris . N. Casasayas . Chaturvedi . P. . Chen . G. . A173 . 10.1051/0004-6361/202037867 . 211818198 . 1 . free . 2003.01140 .
2. Web site: CARMENES helped in finding exoplanet proxy atmosphere . 2022-04-03 . Zentrum für Astronomie . en-US.
3. Web site: PHL @ UPR Arecibo - The Habitable Exoplanets Catalog . 2022-04-03 . phl.upr.edu . en-US.
4. Web site: CARMENES confirma la presencia de un nuevo sistema planetario con un potencial mundo habitable . August 2019 .
5. Web site: PHL @ UPR Arecibo - The Habitable Exoplanets Catalog . 2022-04-05 . phl.upr.edu . en-US.