The Global Oscillation Network Group (GONG) project

被引：466

作者：

Harvey, JW

Hill, F

Hubbard, RP

Kennedy, JR

Leibacher, JW

Pintar, JA

Gilman, PA

Noyes, RW

Title, AM

Toomre, J

Ulrich, RK

Bhatnagar, A

Kennewell, JA

Marquette, W

Patron, J

Saa, O

Yasukawa, E

机构：

[1] NATL CTR ATMOSPHER RES,HIGH ALTITUDE OBSERV,BOULDER,CO 80307

[2] SMITHSONIAN ASTROPHYS OBSERV,CAMBRIDGE,MA 02138

[3] LOCKHEED SOLAR & ASTROPHYS LAB,PALO ALTO,CA 94304

[4] UNIV COLORADO,JILA,BOULDER,CO 80309

[5] UNIV CALIF LOS ANGELES,DEPT PHYS & ASTRON,LOS ANGELES,CA 90024

[6] PHYS RES LAB,UDAIPUR SOLAR OBSERV,UDAIPUR,INDIA

[7] IPS RADIO & SPACE SERV,LEARMONTH SOLAR OBSERV,EXMOUTH,WA,AUSTRALIA

[8] BIG BEAR SOLAR OBSERV,BIG BEAR CITY,CA 92314

[9] CALTECH,PASADENA,CA 91125

[10] INST ASTROFIS CANARIAS,OBSERV TEIDE,E-38200 LA LAGUNA,TENERIFE,SPAIN

[11] NATL OPT ASTRON OBSERV,CERRO TOLOLO INTER AMER OBSERV,LA SERENA,CHILE

[12] MAUNA LOA SOLAR OBSERV,HILO,HI 96720

来源：

SCIENCE | 1996年 / 272卷 / 5266期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1126/science.272.5266.1284

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Helioseismology requires nearly continuous observations of the oscillations of the solar surface for long periods of time in order to obtain precise measurements of the sun's normal modes of oscillation. The GONG project acquires velocity images from a network of six identical instruments distributed around the world. The GONG network began full operation in October 1995. It has achieved a duty cycle of 89 percent and reduced the magnitude of spectral artifacts by a factor of 280 in power, compared with single-site observations. The instrumental noise is less than the observed solar background.

引用

页码：1284 / 1286

页数：3

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