| 词条 | Maria family | |||||||||||||||
| 释义 |
The Maria family (adj. Marian; FIN: 506; also known as Roma family) is a collisional asteroid family located in the inner parts of the intermediate asteroid belt, near the 1:3 Kirkwood gap. The family consist of several thousand stony S-type asteroids. It is named after its parent body and lowest numbered member, the asteroid 170 Maria.[2]{{rp|23}} It is also known as the Roma family, named after its alternative parent body, 472 Roma.[3] The family was initially identified by Japanese astronomer Kiyotsugu Hirayama in 1918. Asteroids in this family typically have a semi-major axis between 2.52−2.62 AU, and an inclination of 12 to 17°.[1] MembersThe family consists of 2940 known members based the HCM method. Its largest members are the asteroids 170 Maria and 472 Roma.[2]{{rp|23}} A complete synthetic HCM-listing for all members can be obtained by using the Ferret Interactive Search.[7]
InterlopersAlthough asteroid 695 Bella has orbital properties that make it a candidate for this family, the spectral properties of the object indicate it is most likely an interloper. Instead, it may have been spalled off from 6 Hebe, or its parent body. References1. ^EasySky - Screenshots [2][3][4]2. ^1 2 3 {{Cite journal |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |url = https://arxiv.org/pdf/1502.01628.pdf |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |access-date= 23 June 2017}} 3. ^1 {{Cite journal |first1 = Joseph R. |last1 = Masiero |first2 = A. K. |last2 = Mainzer |first3 = J. M. |last3 = Bauer |first4 = T. |last4 = Grav |first5 = C. R. |last5 = Nugent |first6 = R. |last6 = Stevenson |date = June 2013 |title = Asteroid Family Identification Using the Hierarchical Clustering Method and WISE/NEOWISE Physical Properties |url = https://arxiv.org/pdf/1305.1607.pdf |journal = The Astrophysical Journal |volume = 770 |issue = 1 |page = 22 |bibcode = 2013ApJ...770....7M |doi = 10.1088/0004-637X/770/1/7 |arxiv = 1305.1607 |access-date= 25 April 2018}} 4. ^1 {{cite web |title = Small Bodies Data Ferret |work = Synthetic Family (170) Maria – Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 22 July 2017}} ([https://sbntools.psi.edu/ferret/PropertySearch/familyResults.action?searchType=NESVORNY_S&searchName=170+Maria&limitResults=false Query]) }} {{Small Solar System bodies}} 1 : Maria asteroids |
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