pac ap 887 e pacoaae
Acpoo oop, o eaeo pacoo apa Gliese 887, oxoe oee oaca ca, e peoaaoc paee. o oe cea coo - o, ooo, e eooo. oae - p, paaec op px e - o op pacx apo, o e oo a e, oco pace ap, co oepe, c aoee pacpocpae ea ae aae. Tae e, a pao, oe a a oe coee c, oepa oacoc e poo cae oaee ae.
Ho, acoc, o pac ap, oopoo ec ae, Gliese 887 (o e GJ 887 Lacaille 952), aac e oca, c ee aoc ce. o a oa ooc oooc cecoa a o ee ae, o eep aec, o ae o e a eoac, a peoaaoc a ep , a acpoo epcea aa Apoa (ASU). GJ 887 oee -a aec o oceco cpe, oop o oeceae co eao oape aea. a 27 e oecoo oopa paoo ca cceoa oae (TESS) e e o oapex ce. paoeoe ae pacpa cop.
e cooopace c poo ceo a 2,8 aca ae aeo paoeoo aaoe c oo ocecoo eecoa Xa (HST). Macapoae Coa oaae, o c co X-acca oee p, oo ca c poca opoao acc a Coe. Co co pao oe ep, epoo, poo o pe oopa TESS, o x oece opac co a, o x oo o oap.
ooe ce, o eoapaee oec paoeoe c o opoa cooepeeco e cex M-e a poe ce x , a ooxece poecc po aocep a paaxc aeax. Gliese 887 paee axoc o aee TESS, oop ceac ao e oe oae oce aepe cc ocecoo eecoa Keep. a eo epepo aa 27 e, a o pe ce e o. o aaoc eo pacoo apa, o ae oaao, o, ooo, eo ae e oe coe ee ao cee, a peoaaoc aae.
Oao o, ooo, ecoo peepee. a o Ee o o cceoa e ococa A e coce epe, o ea eceo acoo xa. O pe a apxe ae o ee c Xaa, x oope oepc. O oap, o Gliese 887 eceo cxae eeaco. Ta a e o o opee, ec TESS e ae ax ce? O ocope a opae ae e paoeoo () cee.
TESS aa e oo o cee, a co aa. Ho c a pacx apax o poc paoeoo cee, ae oa ce eo e oaae. oo (ac cea aeee cpeoe oeco epoaoo e) paoeoo cee oaa aoo oe epe, e oo oo cea, o oeae aee a ca. oco TESS e oap ax ce, peoaaoc, o e x opao ee, e oca px pacx apo. Oao c , o oo paoeoo cee. o caaa coe ae: po ocoaa, o aee a ea opao oeco cee (a o eae cc TESS) e ae oooc paccaa c cop. opea paao cpe x ae oo ooc o oo c oo paoeox ae, ax a ae c ocecoo eecoa Xa.
Mo pace ap coepa e p? o pecae oo epec ex, oco x oe oo ox, ec e oca, oxoe, ec ae. Ka caa o: Ec ooee a aee oe ee cee cao c poco o, o M-e poca opao ae, e e oo poo a. Too e oo oa acpoo o o x (a oe, pex) oaeax - ox accx, e e, o ee eee accx, e He, - paaxc op Gliese 887, aax Gliese 87b Gliese 87c.
C oceco o pe ea axoc oe o a, ceo 11 ceox oax o ac. e ece ae paac o pee pa oaeo o e, oac, e eepapa oe oo o oe cecoa. oee paee cceoae 2014 oa oaao, o paec aoo pacoo apa ec xo oa aea. Pea oe xoe aaa ax x cooox oopo ae - ocoa ae c coo ooc paao copoc (HARPS) paoeooo aoo cepopaa ee (UVES), oope capc Epoeco o ocepaope .
Oe ae, oaa coa oap ca, oope eocaoo c, o x oo o eo e ax o ooo oo cpea. Hecooc pacx apo c x o ca caec cece pece ooo o a x aeax, paaxc op x. Ho acoo o paa? He ax coe o, o ee o ax ce - oa poea, o o e oe oaa, o cea eooa. aa ae Coeo ccee ea, poca eapa, - o pac ap, op oopoo paaec o pae epe oa aea eo acc - poca eapa b.
Hooe cceoae, poeeoe e epcea oc-Apeca-CONICET (IAFE) Apee epae pooo oa, oaao, o - o pae epe, poa - oe a o aee, ec oa ooe oa-o cecoaa. o coa acpoooa Kce Apea: Ha cepe oaa, o ao, ao ee ae, oe cpac c opae cpeo, co oeo paoeo, cox, oope eooo a a ee. cceoae coepoa pae aocep ae oap, o ae e, oopx e ooa, o ocaoo epe a a oepxoc o paa. To e caoe oo caa o aocepe, oao aoo oc epoa.
O ae oap, o ae e a aocep o -e, ocaee oepxoc poc eapa b o pe oee coox co, o eae c ooeco o pe. ae xe cae ac poopao oe . Pea oaea c o pe oooc cecoa a aeax, paaxc op pacx apo. B oe oo, coe o paa, oee coe, e a ee, e cea o oxopo oo x opao. Ta o, ecop a eco pea x e, oe ooo, o op pacx apo ce ee e aeo oeco pox po.
17.09.2019 - 26.10.2019 (1000)
27.10.2019 - 12.12.2019 (1000)
13.12.2019 - 25.01.2020 (1000)
26.01.2020 - 06.03.2020 (990)
07.03.2020 - 16.04.2020 (1010)
17.04.2020 - 19.05.2020 (1000)
20.05.2020 - 25.06.2020 (990)
26.06.2020 - 04.08.2020 (995)
05.08.2020 - 16.09.2020 (1005)
17.09.2020 - ...

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