Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 2171  |  »Ø¸´: 46
¡¾½±Àø¡¿ ±¾Ìû±»ÆÀ¼Û44´Î£¬×÷ÕßhanqianzhangÔö¼Ó½ð±Ò 35.2 ¸ö
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

hanqianzhang

Í­³æ (³õÈëÎÄ̳)


[×ÊÔ´] Nature-20130103

Nature-20130103

About the cover
Giant spiral galaxies are assembled from smaller systems through a process known as hierarchical clustering. In orbit around these giants are dwarf galaxies, which are presumably remnants of the galactic progenitors. Recent studies of the dwarf galaxies of the Milky Way have lead some astronomers to suspect that their orbits are not randomly distributed. This suspicion, which challenges current theories of galaxy formation, is now bolstered by the discovery of a plane of dwarf galaxies corotating as a coherent pancake-like structure around the Andromeda galaxy, the Milky Way¡¯s close neighbour and in many respects its ¡®twin¡¯. The structure is extremely thin yet contains about half of the dwarf galaxies in the Andromeda system. The authors report that 13 of the 15 satellites in the plane share the same sense of rotation. On the cover, a true colour image of the Andromeda galaxy, with two satellite galaxies visible, by Jean-Charles Cuillandre (CFHT) and Giovanni Anselmi (Coelum Astronomia).
»Ø¸´´ËÂ¥

» ±¾Ìû¸½¼þ×ÊÔ´Áбí

  • »¶Ó­¼à¶½ºÍ·´À¡£ºÐ¡Ä¾³æ½öÌṩ½»Á÷ƽ̨£¬²»¶Ô¸ÃÄÚÈݸºÔð¡£
    ±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æÈ¨ÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺xiaomuchong@tal.com
  • ¸½¼þ 1 : Nature-20130103.pdf
  • 2013-01-03 19:31:12, 32.71 M

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

ÉúÎïÀàµç×ÓÊé ÎÄÏ×ÍÆ¼ö ¿Æ¼¼ ѧÊõ×ÊÔ´-Biology

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

macz

Òø³æ (СÓÐÃûÆø)


¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶,ÓÅÐãÍÆ¼ö

ºÃ¶«Î÷£¬¸ÕÄ꿪ͷ¾Í³öеÄÁË¡£ËÙ¶È
30Â¥2013-01-10 19:10:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 47 ¸ö»Ø´ð
¼òµ¥»Ø¸´
2013-01-03 21:20   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
С³æs3Â¥
2013-01-03 21:35   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
MAPK4Â¥
2013-01-03 21:46   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ab200635305Â¥
2013-01-03 21:55   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
wxf-er6Â¥
2013-01-03 22:44   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
qusongyuan7Â¥
2013-01-03 23:23   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
lushuiw8Â¥
2013-01-04 15:51   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
1371677419Â¥
2013-01-04 16:22   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
csxu2010060810Â¥
2013-01-04 19:01   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
yuanhaojie11Â¥
2013-01-04 19:18   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
peterlizb12Â¥
2013-01-04 19:35   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
xuhu_1113Â¥
2013-01-04 19:47   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
thz2005206914Â¥
2013-01-04 20:19   »Ø¸´  
ÎåÐÇºÃÆÀ  ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
¡î ÎÞÐǼ¶ ¡ï Ò»ÐǼ¶ ¡ï¡ï¡ï ÈýÐǼ¶ ¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐũҵ071010£¬320Çóµ÷¼Á +4 À§À§À§À§À¤À¤ 2026-04-14 5/250 2026-04-14 21:29 by ¶ßÀ²AÃÎÖ»ÊǸöÃÎ
[¿¼ÑÐ] 085500Çóµ÷¼Á²ÄÁÏ +11 Ò×11122 2026-04-09 11/550 2026-04-14 17:59 by lhj2009
[¿¼ÑÐ] 071000ÉúÎïѧµ÷¼ÁÇóÖú +18 zzzzwww 2026-04-09 21/1050 2026-04-14 15:39 by zs92450
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +6 RussHu 2026-04-12 7/350 2026-04-14 15:16 by sxdj2
[¿¼ÑÐ] Çóµ÷¼Á +12 ºÎÆøÕý 2026-04-13 13/650 2026-04-14 14:47 by zs92450
[¿¼ÑÐ] 284Çóµ÷¼Á +17 ÈÃÎÒÉϰ¶°É°¢Î÷ 2026-04-09 17/850 2026-04-14 14:44 by ²»ÎÒÀ­ÂÌ¿¨
[¿¼ÑÐ] 300·ÖÇóµ÷¼Á £¨085501»úеר˶£¬±¾¿ÆÑï´ó£© +9 xu@841019 2026-04-11 10/500 2026-04-14 08:48 by ľľmumu¡«
[¿¼ÑÐ] 293Çóµ÷¼Á +16 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 18/900 2026-04-13 21:47 by ѧԱJpLReM
[¿¼ÑÐ] 322Çóµ÷¼Á£¬08¹¤¿Æ +4 ½ñÌìÊǸöСºÅ 2026-04-08 4/200 2026-04-13 00:20 by baobaoye
[¿¼ÑÐ] Ò»Ö¾Ô¸Õã´óÉúÎï325·ÖÇóµ÷¼Á +9 zysheng 2026-04-12 9/450 2026-04-12 22:31 by yuyin1233
[¿¼ÑÐ] 322Çóµ÷¼Á +6 123°²¿µ 2026-04-12 13/650 2026-04-12 15:51 by 123°²¿µ
[¿¼ÑÐ] 295·ÖÇóµ÷¼Á +13 ?ÒªÉϰ¶? 2026-04-10 13/650 2026-04-12 15:37 by laoshidan
[¿¼ÑÐ] Çóµ÷¼Á +16 ÕÅ·¬ÇѲ»³´µ° 2026-04-10 17/850 2026-04-12 13:58 by °¾Ò¹³É£¡
[¿¼ÑÐ] 293Çóµ÷¼Á +6 ÓÂÔ¶¿â°®314 2026-04-08 6/300 2026-04-11 10:08 by zhq0425
[¿¼ÑÐ] 311Çóµ÷¼Á +13 xypÏë¶ÁÊé 2026-04-10 14/700 2026-04-11 09:41 by Öí»á·É
[¿¼ÑÐ] Çóµ÷¼Á +5 ²»»á·ÉµÄÓã@ 2026-04-10 5/250 2026-04-10 19:07 by chemisry
[¿¼ÑÐ] Ò»Ö¾Ô¸¿ó´ó£¬²ÄÁϹ¤³Ìר˶314·Ö£¬0856¿Éµ÷¶¼¿ÉÒÔ +15 ÎÞи¿É»÷µÄ¾ÞÈË 2026-04-09 15/750 2026-04-10 18:10 by hmn_wj
[¿¼ÑÐ] Çóµ÷¼Á ²ÄÁÏÓ빤³Ì 324·Ö ר˶ +19 ôæôæÒ»ÊéÉú 2026-04-10 21/1050 2026-04-10 11:41 by wp06
[¿¼ÑÐ] 070300»¯Ñ§ Çóµ÷¼Á +13 73372112 2026-04-08 13/650 2026-04-09 20:22 by maddjdld
[¿¼ÑÐ] 22408 266Çóµ÷¼Á +11 masss11222 2026-04-07 14/700 2026-04-08 11:06 by yulian1987
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û