[
    {
        "id": "data:jjsjy-37d32",
        "collection": "data",
        "collection_id": "jjsjy-37d32",
        "cite_using_url": "https://data.caltech.edu/records/jjsjy-37d32",
        "type": "dataset",
        "title": "JWST NIRSpec data for three long-period AM CVn binaries",
        "author": [
            {
                "family_name": "El-Badry",
                "given_name": "Kareem",
                "orcid": "0000-0002-6871-1752"
            }
        ],
        "abstract": "<p>This dataset contains the data for JWST program 4979. Basic properties of the data are described in the paper \"JWST observations of three long-period AM CVn binaries: detection of the donors and hints of magnetically truncated disks\", submitted to OJAp in January 2026. Please cite that paper if you use the data, and please let me know if you are planning to do something with it. The data is publicly available and I would love to see it put to good use. More information is given in the readme.txt file included in the dataset.&nbsp;</p><p>Kareem El-Badry (kelbadry@caltech.edu)</p>",
        "doi": "10.22002/jjsjy-37d32",
        "publisher": "CaltechDATA",
        "publication_date": "2026-01-02"
    },
    {
        "id": "data:fbdqe-hez98",
        "collection": "data",
        "collection_id": "fbdqe-hez98",
        "cite_using_url": "https://data.caltech.edu/records/fbdqe-hez98",
        "type": "dataset",
        "title": "Searching for Magnetar Binaries Disrupted by Core-Collapse Supernovae",
        "author": [
            {
                "family_name": "Sherman",
                "given_name": "Myles B",
                "orcid": "0000-0002-6573-7316"
            },
            {
                "family_name": "Ravi",
                "given_name": "Vikram",
                "orcid": "0000-0002-7252-5485"
            },
            {
                "family_name": "El-Badry",
                "given_name": "Kareem",
                "orcid": "0000-0002-6871-1752"
            },
            {
                "family_name": "Sharma",
                "given_name": "Kritti",
                "orcid": "0000-0002-4477-3625"
            },
            {
                "family_name": "Koch Ocker",
                "given_name": "Stella",
                "orcid": "0000-0002-4941-5333"
            },
            {
                "family_name": "Kosogorov",
                "given_name": "Nikita",
                "orcid": "0000-0003-1226-118X"
            },
            {
                "family_name": "Connor",
                "given_name": "Liam",
                "orcid": "0000-0002-7587-6352"
            },
            {
                "family_name": "Faber",
                "given_name": "Jakob",
                "orcid": "0000-0001-9855-5781"
            }
        ],
        "abstract": "<p>This repository contains data associated with \"Searching for Magnetar Binaries Disrupted by Core-Collapse Supernovae\" by Myles B. Sherman, Vikram Ravi, Kareem El-Badry, Kritti Sharma, Stella Ocker, Nikita Kosogorov, Liam Connor, and Jakob Faber. For details on the data format, see the ReadMe.md file.</p><p>Abstract: Core-collapse Supernovae (CCSNe) are considered to be the primary magnetar formation channel, with 15 magnetars associated with supernova remnants (SNRs). A large fraction of these should occur in massive stellar binaries that are disrupted by the explosion, meaning that $\\sim45\\%$ of magnetars should be nearby high-velocity stars. Here we conduct a multi-wavelength search for unbound stars, magnetar binaries, and SNR shells using public optical ($uvgrizy-$bands), infrared ($J-$, $H-$, $K-$, and $K_s-$bands), and radio ($888$\\,MHz, $1.4$\\,GHz, and $3$\\,GHz) catalogs. We use Monte Carlo analyses of candidates to estimate the probability of association with a given magnetar based on their proximity, distance, proper motion, and magnitude. In addition to recovering a proposed magnetar binary, a proposed unbound binary, and 13 of 15 magnetar SNRs, we identify two new candidate unbound systems: an OB star from the \\textit{Gaia} catalog we associate with SGR\\,J1822.3-1606, and an X-ray pulsar we associate with 3XMM\\,J185246.6+003317. Using a Markov-Chain Monte Carlo simulation that assumes all magnetars descend from CCSNe, we constrain the fraction of magnetars with unbound companions to $5\\lesssim f_u \\lesssim 24\\%$, which disagrees with population synthesis results. Alternate formation channels are unlikely to wholly account for the lack of unbound binaries as this would require $31\\lesssim f_{nc} \\lesssim 66\\%$ of magnetars to descend from such channels. Our results support a high fraction ($48\\lesssim f_m \\lesssim 86\\%$) of pre-CCSN mergers, which can amplify fossil magnetic fields to preferentially form magnetars.</p>",
        "doi": "10.22002/fbdqe-hez98",
        "publisher": "CaltechDATA",
        "publication_date": "2024-05-17"
    }
]