PSR B1919+21

PSR B1919+21

Çâåçäà
Èñòîðèÿ èññëåäîâàíèÿ
Îòêðûâàòåëü	Äæîñåëèí Áåëë Áåðíåëë
Äàòà îòêðûòèÿ	èþëü, 1967
Íàáëþäàòåëüíûå äàííûå (Ýïîõà J2000.0)
Òèï	Ïóëüñàð
Ïðÿìîå âîñõîæäåíèå	[1]&de=%2B21%C2%B0%26nbsp%3B53%26prime%3B%26nbsp%3B01%2C8288%26Prime%3B&zoom=9&show_box=1 09÷ 21ì 44,79808ñ
Ñêëîíåíèå	[1]&de=%2B21%C2%B0%26nbsp%3B53%26prime%3B%26nbsp%3B01%2C8288%26Prime%3B&zoom=9&show_box=1 +21° 53â² 01,8288â³
Ðàññòîÿíèå	2283,12 ñâ. ëåò
Ñîçâåçäèå	Ëèñè÷êà
Ôèçè÷åñêèå õàðàêòåðèñòèêè
Ìàññà	~1,4 M☉
Ðàäèóñ	~1,4·10-6 R☉
Âîçðàñò	1,6·107 ëåò
Ñâåòèìîñòü	0,006 L☉
Âðàùåíèå	1,3373 ñåê.
Äðóãèå îáîçíà÷åíèÿ PSR J1921+2153, PSR 1921+2153, PSR B1919+21, PSR 1919+21, WSTB 12W15, PULS CP 1919+21, PULS CP 1919, CP 1919+21, CP 1919

PSR B1919+21 â ÿâëÿåòñÿ ïóëüñàðîì ñ ïåðèîäîì 1,3373 ñåêóíäû è âðåìåíåì èìïóëüñà â 0,04 ñåêóíäû. Ïðèìå÷àòåëüíî, ÷òî ýòî ïåðâûé èç ðàäèîïóëüñàðîâ, êîãäà-ëèáî îòêðûòûõ (â èþëå 1967 ã. Äæîñåëèí Áåëë Áåðíåëë). Ïåðâîíà÷àëüíîå íàçâàíèå ÑÐ 1919, à òàêæå PSR J1921 +2153. Îáúåêò íàõîäèòñÿ â ñîçâåçäèè Ëèñè÷êè.

Èññëåäîâàíèå

Ïî îïðåäåë¸ííîìó õàðàêòåðó ñèãíàëà, èññëåäîâàòåëè Áåëë è åå ðóêîâîäèòåëü Ýíòîíè Õüþèø, ñíà÷àëà çàïîäîçðèëè, ÷òî ýòî ñèãíàë îò äðóãîé öèâèëèçàöèè:

Ìû íå âåðèëè, ÷òî ìû ïîëó÷èëè ñèãíàëû îò äðóãèõ öèâèëèçàöèé, íî, î÷åâèäíî, èäåÿ îñëåïèëà íàøè óìû è ó íàñ íå áûëî äîêàçàòåëüñòâ òîãî, ÷òî áûëî âïîëíå åñòåñòâåííîå ðàäèîèçëó÷åíèå. Ýòî èíòåðåñíàÿ ïðîáëåìà - åñëè êòî-òî äóìàåò îäèí ÷òî, âîçìîæíî, îáíàðóæåíà æèçíü â äðóãîì ìåñòå âî Âñåëåííîé, êàê ìîæíî îáúÿâèòü ðåçóëüòàòû îòâåòñòâåííî? Êòî æå ìîæåò ñêàçàòü â ïåðâûì?

â

Ïîçæå èññëåäîâàòåëè Òîìàñ Ãîëä è Ôðåä Õîéë ïðàâèëüíî îïðåäåëèâ ýòè ñèãíàëû, óñòàíîâèëè ÷òî ýòî áûñòðî âðàùàþùàÿñÿ íåéòðîííàÿ çâåçäà ñ ñèëüíûì ìàãíèòíûì ïîëåì.

Ññûëêè

• http://www.jb.man.ac.uk/~pulsar/Education/Tutorial/tut/node3.html
• http://www.edwardsly.com/bellburs.htm
• http://query.nytimes.com/gst/fullpage.html?sec=health&res=9C02E4DE123EF933A15753C1A9659C8B63
• http://w0.sao.ru/hq/grb/pulsars/PSR/B1919+21/catalog.txt
• http://www.astro.cornell.edu/~shami/psrvlb/bestvla.txt