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The frequency of metal-enrichment of cool helium-atmosphere white dwarfs using the DESI Early Data Release

Fuente: arXiv

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Main Authors:	Manser, Christopher J., Gänsicke, Boris T., Izquierdo, Paula, Swan, Andrew, Najita, Joan, Rockosi, C., Carrillo, Andreia, Kim, Bokyoung, Xu, Siyi, Dey, Arjun, Aguilar, J., Ahlen, S., Blum, R., Brooks, D., Claybaugh, T., Dawson, K., de la Macorra, A., Doel, P., Gaztañaga, E., Gontcho, S. Gontcho A, Honscheid, K., Kehoe, R., Kremin, A., Landriau, M., Guillou, L. Le, Levi, Michael E., Li, T. S., Meisner, A., Miquel, R., Nie, J., Rezaie, M., Rossi, G., Sanchez, E., Schubnell, M., Tarlé, G., Weaver, B. A., Zhou, Z., Zou, H.
Format:	Preprint
Published:	2024
Subjects:	Earth and Planetary Astrophysics Solar and Stellar Astrophysics
Online Access:	Acceder al recurso
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_version_	1866916142031831040
author	Manser, Christopher J. Gänsicke, Boris T. Izquierdo, Paula Swan, Andrew Najita, Joan Rockosi, C. Carrillo, Andreia Kim, Bokyoung Xu, Siyi Dey, Arjun Aguilar, J. Ahlen, S. Blum, R. Brooks, D. Claybaugh, T. Dawson, K. de la Macorra, A. Doel, P. Gaztañaga, E. Gontcho, S. Gontcho A Honscheid, K. Kehoe, R. Kremin, A. Landriau, M. Guillou, L. Le Levi, Michael E. Li, T. S. Meisner, A. Miquel, R. Nie, J. Rezaie, M. Rossi, G. Sanchez, E. Schubnell, M. Tarlé, G. Weaver, B. A. Zhou, Z. Zou, H.
author_facet	Manser, Christopher J. Gänsicke, Boris T. Izquierdo, Paula Swan, Andrew Najita, Joan Rockosi, C. Carrillo, Andreia Kim, Bokyoung Xu, Siyi Dey, Arjun Aguilar, J. Ahlen, S. Blum, R. Brooks, D. Claybaugh, T. Dawson, K. de la Macorra, A. Doel, P. Gaztañaga, E. Gontcho, S. Gontcho A Honscheid, K. Kehoe, R. Kremin, A. Landriau, M. Guillou, L. Le Levi, Michael E. Li, T. S. Meisner, A. Miquel, R. Nie, J. Rezaie, M. Rossi, G. Sanchez, E. Schubnell, M. Tarlé, G. Weaver, B. A. Zhou, Z. Zou, H.
contents	There is overwhelming evidence that white dwarfs host planetary systems; revealed by the presence, disruption, and accretion of planetary bodies. A lower limit on the frequency of white dwarfs that host planetary material has been estimated to be roughly 25-50 per cent; inferred from the ongoing or recent accretion of metals onto both hydrogen-atmosphere and warm helium-atmosphere white dwarfs. Now with the unbiased sample of white dwarfs observed by the Dark Energy Spectroscopic Instrument (DESI) survey in their Early Data Release (EDR), we have determined the frequency of metal-enrichment around cool-helium atmosphere white dwarfs as 21 $\pm$ 3 per cent using a sample of 234 systems. This value is in good agreement with values determined from previous studies. With the current samples we cannot distinguish whether the frequency of planetary accretion varies with system age or host-star mass, but the DESI data release 1 will contain roughly an order of magnitude more white dwarfs than DESI EDR and will allow these parameters to be investigated.
format	Preprint
id	arxiv_https___arxiv_org_abs_2402_18644
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	The frequency of metal-enrichment of cool helium-atmosphere white dwarfs using the DESI Early Data Release Manser, Christopher J. Gänsicke, Boris T. Izquierdo, Paula Swan, Andrew Najita, Joan Rockosi, C. Carrillo, Andreia Kim, Bokyoung Xu, Siyi Dey, Arjun Aguilar, J. Ahlen, S. Blum, R. Brooks, D. Claybaugh, T. Dawson, K. de la Macorra, A. Doel, P. Gaztañaga, E. Gontcho, S. Gontcho A Honscheid, K. Kehoe, R. Kremin, A. Landriau, M. Guillou, L. Le Levi, Michael E. Li, T. S. Meisner, A. Miquel, R. Nie, J. Rezaie, M. Rossi, G. Sanchez, E. Schubnell, M. Tarlé, G. Weaver, B. A. Zhou, Z. Zou, H. Earth and Planetary Astrophysics Solar and Stellar Astrophysics There is overwhelming evidence that white dwarfs host planetary systems; revealed by the presence, disruption, and accretion of planetary bodies. A lower limit on the frequency of white dwarfs that host planetary material has been estimated to be roughly 25-50 per cent; inferred from the ongoing or recent accretion of metals onto both hydrogen-atmosphere and warm helium-atmosphere white dwarfs. Now with the unbiased sample of white dwarfs observed by the Dark Energy Spectroscopic Instrument (DESI) survey in their Early Data Release (EDR), we have determined the frequency of metal-enrichment around cool-helium atmosphere white dwarfs as 21 $\pm$ 3 per cent using a sample of 234 systems. This value is in good agreement with values determined from previous studies. With the current samples we cannot distinguish whether the frequency of planetary accretion varies with system age or host-star mass, but the DESI data release 1 will contain roughly an order of magnitude more white dwarfs than DESI EDR and will allow these parameters to be investigated.
title	The frequency of metal-enrichment of cool helium-atmosphere white dwarfs using the DESI Early Data Release
topic	Earth and Planetary Astrophysics Solar and Stellar Astrophysics
url	https://arxiv.org/abs/2402.18644