{"id":1862,"date":"2021-12-20T10:18:22","date_gmt":"2021-12-20T09:18:22","guid":{"rendered":"https:\/\/stel.asu.cas.cz\/cs\/?page_id=1862"},"modified":"2026-03-12T13:05:36","modified_gmt":"2026-03-12T12:05:36","slug":"jednoradovy-spektrograf","status":"publish","type":"page","link":"https:\/\/stel.asu.cas.cz\/cs\/perkuv-dalekohled\/pristroje\/jednoradovy-spektrograf\/","title":{"rendered":"Jedno\u0159\u00e1dov\u00fd spektrograf"},"content":{"rendered":"\n

Jedno\u0159\u00e1dov\u00fd spektrograf je vl\u00e1kny nap\u00e1jen\u00fd klasick\u00fd spektrograf pracuj\u00edc\u00ed bu\u010f v prvn\u00edm nebo druh\u00e9m \u0159\u00e1du spektra. Druh\u00fd \u0159\u00e1d pokr\u00fdv\u00e1 rozsah vlnov\u00fdch d\u00e9lek 3660-5100 \u00c5 (tedy od bl\u00edzk\u00e9ho UV po modrou \u010d\u00e1st viditeln\u00e9ho sv\u011btla) a d\u00e9lka \u0159\u00e1du je 233 \u00c5. Prvn\u00ed \u0159\u00e1d pokr\u00fdv\u00e1 rozsah 5100-8900 \u00c5 (viditeln\u00e9 zelen\u00e9 a\u017e bl\u00edzk\u00e9 IR z\u00e1\u0159en\u00ed) s d\u00e9lkou \u0159\u00e1du 470 \u00c5. Rozli\u0161en\u00ed spektrografu v oblasti Balmerova skoku je \u223c12 200 a v oblasti \u010d\u00e1ry H\u03b1\u00a0\u223c13\u00a0000. V p\u0159\u00edstroji je pou\u017eit CCD detektor PyLoN 2048x512BX (E2V 42-10 BX) s\u00a0rozm\u011brem pixelu 13.5 \u03bcm, kamera je chlazen\u00e1 tekut\u00fdm dus\u00edkem na pracovn\u00ed teplotu \u2212115\u00b0C. Hlavn\u00ed v\u00fdhodou tohoto za\u0159\u00edzen\u00ed je \u0161irok\u00fd pracovn\u00ed rozsah vlnov\u00fdch d\u00e9lek (475 \u00c5 v oblasti H\u03b1) s rovnom\u011brn\u00fdm pom\u011brem S\/N.<\/p>\n\n\n\n

Z\u00e1kladn\u00ed charakteristiky kamery<\/mark><\/h5>\n\n\n
\n\n\n\n\n
Kamera<\/strong><\/td>\n\u010cip<\/strong><\/td>\nRozli\u0161en\u00ed<\/strong><\/td>\nPixel size<\/strong><\/td>\nVy\u010dten\u00ed<\/strong><\/td>\n<\/tr>\n
PyLoN<\/strong><\/a><\/td>\nE2V 42-10 BX<\/strong><\/td>\n2048×512<\/strong><\/td>\n13.5 x 13.5 <\/strong>\u03bcm<\/strong><\/td>\n19 s<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n
Z\u00e1kladn\u00ed charakteristiky spektrografu<\/mark><\/h5>\n\n\n\n

Jedno\u0159\u00e1dov\u00fd spektrograf pracuje ve dvou spektr\u00e1ln\u00edch \u0159\u00e1dech. Prvn\u00ed \u0159\u00e1d umo\u017e\u0148uje zaznamenat \u010dervenou \u010d\u00e1st spektra v rozsahu od p\u0159ibli\u017en\u011b 5100 \u00c5 a\u017e do infra\u010derven\u00e9 oblasti. Druh\u00fd \u0159\u00e1d slou\u017e\u00ed k z\u00e1znamu modr\u00e9 \u010d\u00e1sti spektra od p\u0159ibli\u017en\u011b 4000 \u00c5 do 5 100 \u00c5.<\/p>\n\n\n

\n\n\n\n\n
1. \u0159\u00e1d
<\/strong><\/td>\n		D\u00e9lka \u0159\u00e1du
<\/strong><\/td>\n		Rozli\u0161en\u00ed
<\/strong><\/td>\n		\u00a0<\/strong><\/td>\n<\/tr>\n
5100-8900 \u00c5<\/strong><\/td>\n470 \u00c5<\/strong><\/td>\n~13 000 (H<\/strong>\u03b1)<\/strong><\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n
\n\n\n\n\n
2. \u0159\u00e1d
<\/strong><\/td>\n		D\u00e9lka \u0159\u00e1du
<\/strong><\/td>\n		Rozli\u0161en\u00ed <\/strong><\/td>\n\u00a0<\/strong><\/td>\n<\/tr>\n
3660-5100 \u00c5<\/strong><\/td>\n233 \u00c5<\/strong><\/td>\n~12 200 (Balmer\u016fv skok<\/strong>)<\/strong><\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n

D\u00e9lka najednou zobrazen\u00e9ho intervalu spektra je v prvn\u00edm \u0159\u00e1du p\u0159ibli\u017en\u011b 470 \u00c5, ve druh\u00e9m pak p\u0159ibli\u017en\u011b 230 \u00c5 (pom\u011br je tedy zhruba 2:1). Rozli\u0161en\u00ed (R) v prvn\u00edm \u0159\u00e1du je p\u0159ibli\u017en\u011b 13 000 (v oblasti kolem \u010d\u00e1ry H\u03b1), ve druh\u00e9m \u0159\u00e1du pak 12 200.<\/p>\n\n\n\n

Vybran\u00e9 p\u0159eddefinovan\u00e9 spektr\u00e1ln\u00ed rozsahy<\/h5>\n\n\n\n
Balmer\u016fv skok<\/strong><\/td>H-gamma<\/strong><\/td>H-beta<\/strong><\/td>H-alpha<\/strong><\/td>GAIA<\/strong><\/td><\/tr>
3665-3920<\/td>4272-4506 \u00c5<\/td>4757-4990 \u00c5<\/td>6260-6765 \u00c5<\/td>8400-8870 \u00c5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Spektr\u00e1ln\u00ed rozsah (poloha st\u0159edu zobrazen\u00e9ho \u00faseku spektra) je mo\u017en\u00e9 p\u0159i pozorov\u00e1n\u00ed nastavit individu\u00e1ln\u011b dle po\u017eadavku. <\/p>\n\n\n\n

Optick\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed<\/span><\/strong><\/h5>\n\n\n\n