oce 0.1 M oce )2w7x Iy#vc0.3M oce ",2%fx7x Iyfv gbndp Petit et al. (2001) Gomes et al. (2005) O’Brien et al. (2007) Walsh et al. (2011) খ খɾክɾණඍʹΑΔਫڙڅ ͍ͣΕཧతɾ؍ଌతͳܾΊख͕ແ͍ ෳͷڙڅݯ͔Βͷد༩͕͍ࠞͬͯ͟Δ͔ ණඍ ",2)2w I 0.1 ~ 50 M oce < 0.3 M oce 0.1 M oce )2w7x Iy#vc0.3M oce ",2%fx7x Iyfv gbndp Petit et al. (2001) Gomes et al. (2005) O’Brien et al. (2007) Walsh et al. (2011) ክ
ߡ⹏ଔߢ߈ࠆ rkT GMm O ߎߎߢ㧘Gߪਁᒁജቯᢙ㧘kߪࡏ࡞࠷ࡑࡦቯᢙ㧘Mߪᖺᤊߩ⾰㊂㧘r ߪ ᖺᤊߩਛᔃ߆ࠄߩ〒㔌㧘mߪ᳇ಽሶߩ⾰㊂㧘T ߪ᳇ߩ᷷ᐲ㧘 ߢࠆ㧚 ࠛࠬࠤࡊࡄࡔ࠲ߪ㊀ജࡐ࠹ࡦࠪࡖ࡞ߣᾲࠛࡀ࡞ࠡߩᲧߦߥ ߞߡ߅ࠅ㧘ᄢ߈߶ߤ㊀ജߩ᧤❈߇ᒝ㧚৻⥸⊛ߦ᳇ಽሶ㊂߇ዊߐ ߶ߤ㧘᷷ᐲ߇㜞߶ߤ㧘ᖺᤊ߇ዊߐ߶ߤ᧤❈ߪᒙ㧚 ᰴߦ㧘߽߁ዋߒቯ㊂⊛ߦᬌ⸛ߒߡߺࠃ߁㧚ߘߩߚߦࡐ࠻ࡠࡊ ߣ߁ᔨࠍዉߔࠆ㧚ߎࠇߪജኒᐲ᷷ᐲ߇ᰴߩࠃ߁ߥ㑐ଥࠍḩ ߚߔ㧘ߣ⠨߃ࠆ߽ߩߢࠆ㧚 1 v v J J J U T p ᑼߪ㧘৻⁁ᘒᣇ⒟ᑼߩࠃ߁ߦ߃ࠆ߇㧘ߎࠇߪᾲߩࠅߦ㑐ߔࠆ ᄢ᳇ᢔㅺࠍ⺰ߓࠆ೨ߦ㧘߹ߕᄢߑߞ߬ߦᄢ᳇ࠍᜬߔࠆ᧦ઙࠍ⠨߃ ߡ߅ߎ߁㧚ᄢ᳇߇ᖺᤊߩ㊀ജߦࠃߞߡ᧤❈ߐࠇߡࠆߚߦߪ㧘᳇ߩ ᾲㆇേߩࠛࡀ࡞ࠡࠃࠅ߽㊀ജࡐ࠹ࡦࠪࡖ࡞ߩᣇ߇ᄢ߈ߊߥߌࠇ߫ ߌߥ㧚ߎࠇߪࠛࠬࠤࡊࡄࡔ࠲ O ߣ߫ࠇࠆᰴߩ‛ℂ㊂ࠍ↪ ߡ⹏ଔߢ߈ࠆ rkT GMm O ߎߎߢ㧘Gߪਁᒁജቯᢙ㧘kߪࡏ࡞࠷ࡑࡦቯᢙ㧘Mߪᖺᤊߩ⾰㊂㧘r ߪ ᖺᤊߩਛᔃ߆ࠄߩ〒㔌㧘mߪ᳇ಽሶߩ⾰㊂㧘T ߪ᳇ߩ᷷ᐲ㧘 ߢࠆ㧚 ࠛࠬࠤࡊࡄࡔ࠲ߪ㊀ജࡐ࠹ࡦࠪࡖ࡞ߣᾲࠛࡀ࡞ࠡߩᲧߦߥ ߞߡ߅ࠅ㧘ᄢ߈߶ߤ㊀ജߩ᧤❈߇ᒝ㧚৻⥸⊛ߦ᳇ಽሶ㊂߇ዊߐ ߶ߤ㧘᷷ᐲ߇㜞߶ߤ㧘ᖺᤊ߇ዊߐ߶ߤ᧤❈ߪᒙ㧚 ᰴߦ㧘߽߁ዋߒቯ㊂⊛ߦᬌ⸛ߒߡߺࠃ߁㧚ߘߩߚߦࡐ࠻ࡠࡊ ߣ߁ᔨࠍዉߔࠆ㧚ߎࠇߪജኒᐲ᷷ᐲ߇ᰴߩࠃ߁ߥ㑐ଥࠍḩ ߚߔ㧘ߣ⠨߃ࠆ߽ߩߢࠆ㧚 1 v v J J J U T p ᑼߪ㧘৻⁁ᘒᣇ⒟ᑼߩࠃ߁ߦ߃ࠆ߇㧘ߎࠇߪᾲߩࠅߦ㑐ߔࠆ େؾΛอ࣋Ͱ͖Δͷ࣭ྔ ٿيಓۙͰͷ ฏߧԹ ݍʹ͓͚ΔԹ ʢେؾ্ͷԹʣ [Abe, 2009]