共查询到20条相似文献，搜索用时 15 毫秒
1.
Zhong-Lue Wen Yan-Bin Yang Qi-Rong Yuan Xu Zhou Jun Ma Zhao-Ji Jiang National Astronomical Observatories Chinese Academy of Sciences Beijing Department of Physics Nanjing Normal University Nanjing 《中国天文和天体物理学报》2007,7(1):71-80
1 INTRODUCTION As the largest gravitational bound systems in the universe, clusters of galaxies are important laboratories for understanding the evolution of galaxies, and for constraining cosmological quantities (Bahcall 1988; Postman et al. 1992; Brunne… 相似文献
2.
Hua-Wei Zhang Gang Zhao Department of Astronomy School of Physics Peking University Beijing National Astronomical Observatories Chinese Academy of Sciences Beijing 《中国天文和天体物理学报》2005,5(3):238-244
The abundances of the wide binary pair HD 219175 A and B are determined and compared using a line-by-line differential analysis. No evidence for difference has been found in the abundances of Fe, O, Na, Mg, Al, Si, K, Ca, Sc, Ti, V, Cr, Mn, Ni, Cu and Ba. Our results support a physical relation between the two components of HD 219175. 相似文献
3.
High sensitivity observations of radio halos in galaxy clusters at frequencies ν ≤ 330 MHz are still relatively rare, and very little is known compared to the classical 1.4 GHz images. The few radio halos
imaged down to 150–240 MHz show a considerable spread in size, morphology and spectral properties. All clusters belonging
to the GMRT Radio Halo Survey with detected or candidate cluster-scale diffuse emission have been imaged at 325 MHz with the
GMRT. Few of them were also observed with the GMRT at 240 MHz and 150 MHz. For A 1682, imaging is particularly challenging
due to the presence of strong and extended radio galaxies at the center. Our data analysis suggests that thew radio galaxies
are superposed to very low surface brightness radio emission extended on the cluster scale, which we present here. 相似文献
4.
Enping Zhou Yong Gao Yurui Zhou Xiaoyu Lai Lijing Shao Weiyang Wang Shaolin Xiong Renxin Xu Shuxu Yi Garvin Yim Han Yue Zhen Zhang 《天文和天体物理学研究(英文版)》2024,(2):208-217
The equilibrium configuration of a solid strange star in the final inspiral phase with another compact object is generally discussed,and the starquake-related issue is revisited,for a special purpose to understand the precursor emission of binary compact star merger events(e.g.,that of GRB211211A).As the binary system inspirals inward due to gravitational wave radiation,the ellipticity of the solid strangeon star increases due to the growing tidal field of its compact companion.Elastic energy is... 相似文献
5.
《时间频率公报》1995,(12)
UTC(CSAO)一Signal时刻(UTC)1995年12月MJDBPL/6000 100 kHz08:00:00 (件)LC/9970 100 kHz00:00:0O (娜) BPMe2.5,5,10,15 MHz 00:00:00 (刃口,) BPMi2。5,5,10,15 M击 00:00:00 (m3)号频呼载5005250053500545005550056一20。01一20。01一20。01一20。01一20。01364。2365。8368。2370。1372。1一一一一一,几O甘,二勺自,诊月怡通性4J性40. 0. 0. 0.0.,目内O连︸﹃台一一一一一月r止‘斤口,曰比O月性月性月性二︺.﹄0. 0. 0. 0.0.5005750058500595006050061一20。00一19。97一19。97一19。97ee19。97374。0376。0378。0380.038… 相似文献
6.
《时间频率公报》2003,(9)
号频呼载时刻(IJrl℃闷D即日60(刃 1的 kl七08:00:00 (娜)1习8930 100 k比00:00:00 (娜) BPMe2 .5,5,10,152 加任七 00:加:00 (tns) 即Ml5,5,10,15 卜n七00:00:00 (ms)劝月2(X)3年95288352段拼528855288652887一ZD .01一20 .01一20 .01一20 .01一20 .01353 .43352.81353.09353.16353 .0120 19 18 1817八U nUn一一“︶0,12内J4︸急一20 .01一20 .01一20 .01一20,01一20 .01352.75352.50352.38352.26352.6318 16 17 1818一U on︸0一”甘52888528895289052891528927 7Q了00八6J.几,几IA,l‘.几 ..…︵U﹃U nU 0 nU5289352894528955289… 相似文献
7.
《时间频率公报》2002,(5)
UTC(NTSC)一51即al 100 kl七08:加:00 (邵) 100 kHzoo:00:00 (娜) BP]功e2 .5,5,10,15 加n七 00:00:oo (ms) BP]Mz2 .5,5,10,15 入n七 00:00:00 (ms)号叔呼载时刻(U丁C)公犯2年5月叨D价07 09 03055239552396523975239852399 0.一0.一0一0. 0.一20 .01一20 .01一20 .01一20 .01一20 .01210.66210.78210.盯211.03211.511二,‘内J月,曰、口S拼的524015对0252403524045别0552406524075240852409一20 .01一20 .01一20 .01一20 .01一20 .01212.06212.67213.30213.95214.7415 03 07 1014n︸nU介11︶n︸nU一20 .01一20 .01一20 .01一20 .01… 相似文献
8.
《时间频率公报》1996,(4)
UTC(CSAO)一Signal号频呼载时刻(UTC)1996年4月MJDBPL/6000 100 kHz08:00:00 (拼s)LC/9970 100 kHz00:00:00 (拌s) BPMe2 .5,5,10,15 MHz 00:00:00 (ms) BPMz2 .5,5,10,15 MHz 00:00:00 (ms)5017450175501765017750178一0 .01 0‘04 0.06 0.10一19.99一19.99一19.99一19.99一20.00一365.8一363.7一361、5一359.4一357,2一一一一,孟Q白O口吐‘5017950180501815018250183一19.99一19.99一1 9.99一19.99一19.99一355.0一352.9一350.8一348.5一346.4一一一一一Q自八0 CJ 001上‘.去..二,泣﹃.占 ..…0 0 0 00斑b叮r000以一347.2… 相似文献
9.
10.
13.
《时间频率公报》2000,(8)
UTC(Q汰0)一Sign己时刻(UpC20(刃年8入习DBPL击众犯 1oo kl七08:oo:oo (牌)U乡夕卯0 1加 k壬七加:oo:oo (牌) BPN仓2.5,5,10,15 入n七 oo:加:加 (rna)B日班12.5,5,10,15号叔呼载脚任七加:的:加 (二)习月0.时517610 .350 .320 .28一19.99一19.99一19.99一19.99一19.99一201 .7一201 .6一201.3一201 .0一199.4‘且2口曰4咤公一19,99一19.99一19.99一19.99一19.99一198.8一198.7一198.6一198.8一199.031 29 32 32330 0 nU 005176251763517645176551766一19.99一19.99一19.99一19.99一19.9931 33 32 3433nU OC甘0051767517685176951刀05… 相似文献
14.
《时间频率公报》2000,(1)
UT以CSAO)一Signal时刻(Ul℃)2《X刃年1月入gD 100 kHz08:oo:oo (娜) 1的 好七oo:oo:oo (娜) BPMC2 .5,5,10,15 MHz oo:oo:oo (二) 即Mz2 .5,5,10,15 h任12 oo:oo:oo (zns)号频呼载5154451545515465154751548一0 .58一0 .59一0 .58一0 .58一0 .53一19.99一19.99一19.99一19.99一19.99一355.2一354 .3一353 .4一352.6一352.0112内j45154951550515515155251553一0 .45一0 .37一0 .32一0 .23一0 .21一19.99一19.99一19.99一19.99一19.99一351.3一350 .7一350 .0一料9 .3一努9 .75155451555515565155751558一19.99一19.99一19.99一19.99… 相似文献
15.
《时间频率公报》2001,(12)
UTC(以认0)一S咖日时刘(U丁C)2加1年业月胡D522召5刀455去拼65乞拼752248BPb心阅0 1oo U七08:加:oo (脾)U乡夕刀0 100 k王七的:oo:oo (牌) 日落触2 .5,5,10,15 卜公翻B日功主2.5,5,10,15号叔呼载oot加:曲 (二)加n七:oo到(rna)49 01 46 884293 93 9393男一20 .01一ZD .01一加.01一20 .01一20 .0110 16 13 1622八U nU nU八U nU,人2内J4‘J07 92 40 669295好?9852249522505公巧15225252253一20 .01一20 .01一20 .01一20.01一20.01O户内j7凡」‘.几月工,工..玉 .…nV︸fI︸n甘nU5225452255一20 .01一20 .01一20,01一20 .01一20 .011… 相似文献
16.
《时间频率公报》2003,(3)
UTC(NTSC)一51助al班生庄刀刃 1oo BPM心2 .5,5,10,15 加任七 的:oo:加 (ma)B日班12 .5,5,10,15 kl七08:加:00 (牌) 1的 kHz佣:oo:伪 (牌)号粼呼载入n七时刻(UTC2003年3叫D阅:阅:oo (ma)劝月一20 .01一20 .01一20 .01一20 .01一20 .01321 .89322.50323 .28323 .67324 .6416 19 21 1820nU nU﹃U内”l︸11︺52699527加527015270252703112月J月兮哎口一20 .01一2() .01一20 .01一20 .01一20 .01326 .32327.10327.74328 .201922左2727︵“一0八U︵U介U︸5270452705527065270752708‘U 7 QOQ了一20 .01一20 .01一20 .01一20 .01一20.0… 相似文献