[
    {
        "id": "authors:k8dd3-xck46",
        "collection": "authors",
        "collection_id": "k8dd3-xck46",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20160520-154932140",
        "type": "article",
        "title": "A lunar density model consistent with topographic, gravitational, librational, and seismic data",
        "author": [
            {
                "family_name": "Bills",
                "given_name": "Bruce G.",
                "clpid": "Bills-B-G"
            },
            {
                "family_name": "Ferrari",
                "given_name": "Alfred J.",
                "clpid": "Ferrari-A-J"
            }
        ],
        "abstract": "A series of models of the lunar interior are derived from topographic, gravitational, librational, and seismic data. The librational parameters and low-degree gravity harmonics result primarily from surface height variations and only secondarily from lateral density variations. The moon departs from isostasy, even for the low-degree harmonics, with a maximum superisostatic stress of 200 bars under the major mascon basins. The mean crustal thicknesses under different physiographic regions are: mascons, 30\u201335 km; irregular maria, 50\u201360 km; and highlands, 90\u2013110 km. A possible composition consistent with our model is an anorthositic crust, underlain by a predominantly forsterite upper mantle which grades into a refractory rich lower mantle surrounding a pyrrhotite core.",
        "doi": "10.1029/JB082i008p01306",
        "issn": "0148-0227",
        "publisher": "American Geophysical Union",
        "publication": "Journal of Geophysical Research",
        "publication_date": "1977-03-10",
        "series_number": "8",
        "volume": "82",
        "issue": "8",
        "pages": "1306-1314"
    },
    {
        "id": "authors:2fwp9-hd755",
        "collection": "authors",
        "collection_id": "2fwp9-hd755",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20151116-143721411",
        "type": "article",
        "title": "Lunar Gravity: The First Farside Map",
        "author": [
            {
                "family_name": "Ferrari",
                "given_name": "Alfred J.",
                "clpid": "Ferrari-A-J"
            }
        ],
        "abstract": "A global lunar gravity field has been determined from data on the long-term motion of the Apollo 15 and Apollo 16 subsatellites and Lunar Orbiter 5. The nearside gravity map resolves major mascon basins and, in general, is in excellent agreement with the results of Muller and Sjogren. The farside gravity map is characterized by broad positive gravity in the highland regions with interspersed, localized, negative anomalies corresponding to major ringed basins. A comparison between global gravity and topography indicates that a thicker farside crust could be responsible for these gravitational differences between the two lunar hemispheres.",
        "doi": "10.1126/science.188.4195.1297",
        "issn": "0036-8075",
        "publisher": "American Association for the Advancement of Science",
        "publication": "Science",
        "publication_date": "1975-06-27",
        "series_number": "4195",
        "volume": "188",
        "issue": "4195",
        "pages": "1297-1300"
    }
]