Can we directly measure the local distribution of Dark Matter from Earth? Bradley J Kavanagh GRAPPA, University of Amsterdam 17th October 2018 PRISMA Colloquium, Mainz b.j.kavanagh@uva.nl @BradleyKavanagh
Undergraduate (2007-2011): University of Cambridge, UK Studied: Everything from organic chemistry to crystallography
PhD (2011-2014): University of Nottingham, UK Thesis Title: “Confronting astrophysical uncertainties in the direct detection of dark matter” (2014, Supervised by Anne M. Green)
Postdoc #1 (2014-2017): IPhT & LPTHE, Paris, France Spent time worrying about: More ‘particle’ aspects of Dark Matter - how does it interact with nuclei? (Supervised by Marco Cirelli)
Postdoc #2 (2017-): GRAPPA, University of Amsterdam People keep asking me about: Dark Matter, primordial black holes, gravitational waves, neutrinos,… (Supervised by Gianfranco Bertone)
Open Science Papers (and talks) are just propaganda… …research is notes, calculations, data, code . The more we share, the easier life gets for everyone. Plenty of tools to facilitate sharing and collaboration: Aiming in the last few years to share as much as possible. Not always successful. But every small step is a step in the right direction. bradkav.net github.com/bradkav
Dark Matter on all scales Planck [1502.01589] Galaxy Clusters CMB Galaxies Hradecky et al. [astro-ph/0006397] Rubin, Ford & Thonnard (1980) 7 Bradley J. Kavanagh (GRAPPA, Amsterdam) Measuring the local Dark Matter distribution from Earth
<latexit sha1_base64="49EdWulbAR+YxVr2BU2pCF5hWE=">ACXicbZDLSsNAFIYn9VbrLerSzWARXEhNqC4KrhxWcFeoAlhMp20Q2cyYWZSKFbN76KGxeKuPUN3Pk2TtostPWHgY/nMOc84cJo0o7zrdVWldW98ob1a2tnd29+z9g7YSqcSkhQUTshsiRiNSUtTzUg3kQTxkJFOLrN650xkYqK+EFPEuJzNIhpRDHSxgpsOA480RcaeopyWL9woHfmcaSHkmcjfq6mgV1as5McBncAqgUDOwv7y+wCknscYMKdVznUT7GZKaYkamFS9VJEF4hAakZzBGnCg/m10yhSfG6cNISPNiDWfu74kMcaUmPDSd+ZJqsZab/9V6qY6u/YzGSapJjOcfRSmDWsA8FtinkmDNJgYQltTsCvEQSYS1Ca9iQnAXT16Gdr3mGr6/rDZuijK4Agcg1PgivQAHegCVoAg0fwDF7Bm/VkvVjv1se8tWQVM4fgj6zPHw6WmUM=</latexit> <latexit sha1_base64="49EdWulbAR+YxVr2BU2pCF5hWE=">ACXicbZDLSsNAFIYn9VbrLerSzWARXEhNqC4KrhxWcFeoAlhMp20Q2cyYWZSKFbN76KGxeKuPUN3Pk2TtostPWHgY/nMOc84cJo0o7zrdVWldW98ob1a2tnd29+z9g7YSqcSkhQUTshsiRiNSUtTzUg3kQTxkJFOLrN650xkYqK+EFPEuJzNIhpRDHSxgpsOA480RcaeopyWL9woHfmcaSHkmcjfq6mgV1as5McBncAqgUDOwv7y+wCknscYMKdVznUT7GZKaYkamFS9VJEF4hAakZzBGnCg/m10yhSfG6cNISPNiDWfu74kMcaUmPDSd+ZJqsZab/9V6qY6u/YzGSapJjOcfRSmDWsA8FtinkmDNJgYQltTsCvEQSYS1Ca9iQnAXT16Gdr3mGr6/rDZuijK4Agcg1PgivQAHegCVoAg0fwDF7Bm/VkvVjv1se8tWQVM4fgj6zPHw6WmUM=</latexit> <latexit sha1_base64="49EdWulbAR+YxVr2BU2pCF5hWE=">ACXicbZDLSsNAFIYn9VbrLerSzWARXEhNqC4KrhxWcFeoAlhMp20Q2cyYWZSKFbN76KGxeKuPUN3Pk2TtostPWHgY/nMOc84cJo0o7zrdVWldW98ob1a2tnd29+z9g7YSqcSkhQUTshsiRiNSUtTzUg3kQTxkJFOLrN650xkYqK+EFPEuJzNIhpRDHSxgpsOA480RcaeopyWL9woHfmcaSHkmcjfq6mgV1as5McBncAqgUDOwv7y+wCknscYMKdVznUT7GZKaYkamFS9VJEF4hAakZzBGnCg/m10yhSfG6cNISPNiDWfu74kMcaUmPDSd+ZJqsZab/9V6qY6u/YzGSapJjOcfRSmDWsA8FtinkmDNJgYQltTsCvEQSYS1Ca9iQnAXT16Gdr3mGr6/rDZuijK4Agcg1PgivQAHegCVoAg0fwDF7Bm/VkvVjv1se8tWQVM4fgj6zPHw6WmUM=</latexit> <latexit sha1_base64="49EdWulbAR+YxVr2BU2pCF5hWE=">ACXicbZDLSsNAFIYn9VbrLerSzWARXEhNqC4KrhxWcFeoAlhMp20Q2cyYWZSKFbN76KGxeKuPUN3Pk2TtostPWHgY/nMOc84cJo0o7zrdVWldW98ob1a2tnd29+z9g7YSqcSkhQUTshsiRiNSUtTzUg3kQTxkJFOLrN650xkYqK+EFPEuJzNIhpRDHSxgpsOA480RcaeopyWL9woHfmcaSHkmcjfq6mgV1as5McBncAqgUDOwv7y+wCknscYMKdVznUT7GZKaYkamFS9VJEF4hAakZzBGnCg/m10yhSfG6cNISPNiDWfu74kMcaUmPDSd+ZJqsZab/9V6qY6u/YzGSapJjOcfRSmDWsA8FtinkmDNJgYQltTsCvEQSYS1Ca9iQnAXT16Gdr3mGr6/rDZuijK4Agcg1PgivQAHegCVoAg0fwDF7Bm/VkvVjv1se8tWQVM4fgj6zPHw6WmUM=</latexit> Dark Matter near us Global and local estimates of DM at Solar radius give: ρ χ ∼ 0 . 2 − 0 . 8 GeV cm − 3 (`a few per litre’) 8 . 5 kpc See e.g. Iocco et al. [1502.03821]; Sivertsson et al. [1708.07836]; and review by Read [1404.1938] v � ∼ 230 km / s Try to detect the ‘wind’ of DM particles passing through the Solar System, using Direct Detection and Solar Capture. NOT TO SCALE 8 Bradley J. Kavanagh (GRAPPA, Amsterdam) Measuring the local Dark Matter distribution from Earth
Overview Solar system searches for DM: Direct detection and Solar Capture Astrophysical uncertainties Halo-independent approaches to setting limits Measuring the DM properties and distribution with a future detection [Bonus: Can we also measure the local DM density?] 9 Bradley J. Kavanagh (GRAPPA, Amsterdam) Measuring the local Dark Matter distribution from Earth
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