[
    {
        "id": "authors:4k8t6-n2479",
        "collection": "authors",
        "collection_id": "4k8t6-n2479",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:DIEpnas27",
        "type": "article",
        "title": "The Structure of the Atmospheric Absorption Bands of Oxygen",
        "author": [
            {
                "family_name": "Dieke",
                "given_name": "G. H.",
                "clpid": "Dieke-G-H"
            },
            {
                "family_name": "Babcock",
                "given_name": "Harold D.",
                "clpid": "Babcock-H-D"
            }
        ],
        "abstract": "Although the atmospheric oxygen bands have been the subject of many investigations, the details of their structure have remained only partially explained. The earlier investigators [2] did not have any theory to guide them and it can readily be understood that they often came to contradictory results. In the present paper we have tried to account for the structure of the bands as completely as possible. Our progress has been based on new wave-length measurements which we believe to be more accurate than the previous ones.",
        "issn": "0027-8424",
        "publisher": "National Academy of Sciences",
        "publication": "Proceedings of the National Academy of Sciences of the United States of America",
        "publication_date": "1927-09-01",
        "series_number": "9",
        "volume": "13",
        "issue": "9",
        "pages": "670-678"
    },
    {
        "id": "authors:x1gp6-b1s94",
        "collection": "authors",
        "collection_id": "x1gp6-b1s94",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:HALpnas15c",
        "type": "article",
        "title": "An attempt to measure the free electricity in the sun's atmosphere",
        "author": [
            {
                "family_name": "Hale",
                "given_name": "George E.",
                "clpid": "Hale-G-E"
            },
            {
                "family_name": "Babcock",
                "given_name": "Harold D.",
                "clpid": "Babcock-H-D"
            }
        ],
        "abstract": "We have the strongest of reasons to infer the existence of free electricity in the sun. At high temperatures in the laboratory carbon and other elements emit great numbers of negatively charged particles, while friction, collision and exposure to ultra-violet light may be mentioned among various other agencies capable of producing free electrons under solar conditions. On the other hand, the presence of intense magnetic fields in sun-spots points to a marked preponderance of negative electrons whirling in the spot vortex. Thus, without adducing further evidence, we find that both laboratory results and solar phenomena indicate the presence of free electricity in various parts of the solar atmosphere. [1]",
        "issn": "0027-8424",
        "publisher": "National Academy of Sciences",
        "publication": "Proceedings of the National Academy of Sciences of the United States of America",
        "publication_date": "1915-03",
        "series_number": "3",
        "volume": "1",
        "issue": "3",
        "pages": "123-127"
    }
]