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Vend-RNe társkereső felhívás
Visszatérő vendégcsillagok
Fidrich Róbert
Változós Találkozó, Debrecen, 2022. okt. 8.
Előzmények
●
"Majd ha neked is két gyereked lesz..."
(PPS)
Előzmények
●
"Majd ha neked is két gyereked lesz..."
(PPS)
●
Vendégcsillag-kereső program
●
Pagnotta és Schaefer: a rejtőzködő visszatérő nóvákról
●
AAVSO Alert Notice 664: U Sco észlelési felhívás (2019)
●
AAVSO Alert Notice 750: T CrB észlelési felhívás (2021)
„Nova stella”
●
Klasszikus nóvák vs. szupernóvák vs. törpe nóvák
●
Termonukleáris robbanás (1000-10 ezer évenként)
A visszatérő nóvák
●
Gyakrabb kitörések (akár egy évszázadon belül több is)
●
Ia típusú szupernóva progenitorok?
●
A Tejútrendszerben eddig 10 visszatérő nóvát ismerünk:
T CrB, T Pyx, RS Oph, U Sco, CI Aql, V745 Sco, V3890 Sgr,
V2487 Oph, IM Nor, V394 CrA
●
M31: évente több tucat nóva → a visszatérő nóvák száma is
magasabb lehet
M31N 2008-12a (évente), M31N 1926-07c (5), M31N 1963-09c
(6), M31N 1990-10a (4), M31N 2005-10a (AT 2022qpg)
●
LMC: LMC V1341 (Nova LMC 1968)
hat ismert kitörés: 1968, 1990, 2002, 2010, 2016, 2020. máj.
Visszatérő nóva fénygörbék
Visszatérő nóvák: gyors halványodás
Visszatérő nóvák: gyors halványodás
Rejtőzködő visszatérő nóvák / jelöltek
Klasszikus nóvák vs.
visszatérő nóvák
Klasszikus nóvák vs.
visszatérő nóvák
Klasszikus nóvák vs.
visszatérő nóvák
Klasszikus nóvák vs.
visszatérő nóvák
Klasszikus nóvák vs.
visszatérő nóvák
Rejtőzködő visszatérő nóvák:
V2487 Oph (N Oph 1998)
Vend-RNe program
●
Fókuszban az ismert és a „rejtőzködő”
visszatérő nóvák / jelöltek
●
Cél: elkapni őket, lehetőleg még a felszálló ág
elején
●
Legalább naponta 1-3x észlelni őket
●
Tág földrajzi lefedettség (borult idő esetére)
●
Külföldi all-sky kamerák, robottávcsövek és
amatőrök bevonása
●
Légyszem, ASAS-SN, TESS?
Vend-RNe célpontok
●
U Sco: idén júniusban tört ki
●
T CrB: bármelyik pillanatban (2026 ± 5 év)
●
CI Aql: utoljára 2000-ben tört ki (24-59 év)
●
V838 Her (N Her 1991)
●
KT Eri (N Eri 2009)
●
V2487 Oph: 1900, 1998 -- Pagnottáék 2016-ra jósolták
●
Nova LMC 1968: akár idén is kitörhet
●
Őket is érdemes lenne nyomonkövetni: M31N 2008-12a,
V1721 Aql, DE Cir, CP Cru, V2672 Oph, V4160 Sgr,
V4643 Sgr, V4739 Sgr, V477 Sct, RS Oph
T CrB
●
Eddigi kitörései: 1866 és 1946
●
A következő 3 évben bármikor kitörhet
●
Maximumban akár 2 magnit is elérhet
T CrB:
”bármelyik pillanatban elindulhat...”
T Pyx
●
6,2-15,5V
●
Észlelt kitörései: 1890, 1902, 1920, 1944, 1967,
2011 apr. 14.
●
Következő: 2023?
CI Aql
●
8,5-16,5V
●
NR+E
●
Eddigi kitörései: 1917, 1941, 2000
●
Következő: 2024?
V838 Her
●
Nova Her 1991
●
NA+EA
●
5,3-20,5:V
KT Eri
●
Nova Eri 2009
●
5,4-16,5:V
●
NA+ZAND:+E
KT Eri
●
Nova Eri 2009
●
5,4-16,5:V
●
NA+ZAND:+E
LMC V1341 (Nova LMC 1968)
●
Visszatérő nóva a Nagy Magellán-felhőben
●
10,7-21,1V
●
Eddigi kitörései:
1968, 1990, 2002,
2010, 2016, 2020
●
Következő: 2024?
Visszatérő nóvák az M31-ben
●
A legszorgalmasabb visszatérő nóva:
M31N 2008-12a (évente kitör!)
Visszatérő nóvák az M31-ben
●
A legszorgalmasabb visszatérő nóva:
M31N 2008-12a (évente kitör!)
●
M31N 1926-07c: az ötödik nóvarobbanását
észlelték idén szeptemberben (M31N 2022-
09a)
2,7 évente tör ki (K. Hornoch et. al., 2022)
●
M31N 1963-09c: 1963, 1968, 2001, 2010,
2015, 2020
●
M31N 1990-10a: 1990, 1997, 2009, 2016
●
M31N 2005-10a: 2005, 2022 (AT 2022qpg)
RS Oph
●
A 9. kitörése volt: 1898, 1907, 1933, 1945, 1958,
1967, 1985, 2006, 2021
●
Következő kitörés
2030 környékén?
U Sco
●
7,5-19,3V
●
NR
●
1863, 1906, 1917, 1936, 1945,
1969, 1979, 1987, 1999,
2010. jan. 28., (2016 kihagyott
kitörés?), 2022. jún.
●
Következő: 2028. környékén?
Köszönom a figyelmet!

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Visszatérő vendégcsillagok