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photoD with Rubin's Data Preview 1: first stellar photometric distances and deficit of faint blue stars. Stellar distances with Rubin's DP1

Fuente: arXiv

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Dettagli Bibliografici
Autori principali:	Palaversa, L., Donev, E., Ivezić, Ž., Mrakovčić, K., Caplar, N., Jurić, M., Jurkić, T., Campos, S., DeLucchi, M., Jones, D., Malanchev, K., Malz, A. I., McGuire, S., Abel, B., Girardi, L., Pastorelli, G., Trabucchi, M., Zaggia, S., Acosta, E., Adair, C. L., Andrew, J., Aubourg, É., Bauer, A. E., Beebe, W., Bellm, E. C., Blum, R. D., Booth, M. T., Boucaud, A., Branton, D., Burke, D. L., Calabrese, D., Carlin, J. L., Chiang, H-F., Choi, Y., Connolly, A. J., Dagoret-Campagne, S., Daly, P. N., Daruich, F., Daubard, G., Dennihy, E., Drass, H., Eiger, O., Eisner, A. M., Guy, L. P., Hoblitt, J., Ingraham, P., Jammes, F., Jannuzi, B. T., Jee, M. J., Jenness, T., Jones, R. L., Juramy-Gilles, C., Kahn, S. M., Kang, Y., Kannawadi, A., Kelvin, L. S., Kotov, I. V., Kovács, G., Kurita, N. R., Lange, T., Laporte, D., Lazarte, J. C., Liang, S., Lopez, M., Lust, N. B., Lutfi, M., Lynn, O., Mainetti, G., Menanteau, F., Miller, M., Moniez, M., Sedaghat, N., Nourbakhsh, E., Park, H. Y., Peterson, J. R., Plante, R., Malagón, A. Plazas, Porter, M. N., Reil, K. A., Riot, V. J., Roodman, A., Rykoff, E. S., Schindler, R. H., Sebag, J., Shaw, R. A., Shugart, A., Siruno, K. B., Smith, J. A., Swinbank, J. D., Thayer, J. G., Thomas, S., Tighe, R., Tucker, D. L., Turri, M., Urbach, E. K., Van Klaveren, B., van Reeven, W., Waters, C. Z., Willman, B.
Natura:	Preprint
Pubblicazione:	2025
Soggetti:	Astrophysics of Galaxies Solar and Stellar Astrophysics
Accesso online:	Acceder al recurso
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_version_	1866912980650688512
author	Palaversa, L. Donev, E. Ivezić, Ž. Mrakovčić, K. Caplar, N. Jurić, M. Jurkić, T. Campos, S. DeLucchi, M. Jones, D. Malanchev, K. Malz, A. I. McGuire, S. Abel, B. Girardi, L. Pastorelli, G. Trabucchi, M. Zaggia, S. Acosta, E. Adair, C. L. Andrew, J. Aubourg, É. Bauer, A. E. Beebe, W. Bellm, E. C. Blum, R. D. Booth, M. T. Boucaud, A. Branton, D. Burke, D. L. Calabrese, D. Carlin, J. L. Chiang, H-F. Choi, Y. Connolly, A. J. Dagoret-Campagne, S. Daly, P. N. Daruich, F. Daubard, G. Dennihy, E. Drass, H. Eiger, O. Eisner, A. M. Guy, L. P. Hoblitt, J. Ingraham, P. Jammes, F. Jannuzi, B. T. Jee, M. J. Jenness, T. Jones, R. L. Juramy-Gilles, C. Kahn, S. M. Kang, Y. Kannawadi, A. Kelvin, L. S. Kotov, I. V. Kovács, G. Kurita, N. R. Lange, T. Laporte, D. Lazarte, J. C. Liang, S. Lopez, M. Lust, N. B. Lutfi, M. Lynn, O. Mainetti, G. Menanteau, F. Miller, M. Moniez, M. Sedaghat, N. Nourbakhsh, E. Park, H. Y. Peterson, J. R. Plante, R. Malagón, A. Plazas Porter, M. N. Reil, K. A. Riot, V. J. Roodman, A. Rykoff, E. S. Schindler, R. H. Sebag, J. Shaw, R. A. Shugart, A. Siruno, K. B. Smith, J. A. Swinbank, J. D. Thayer, J. G. Thomas, S. Tighe, R. Tucker, D. L. Turri, M. Urbach, E. K. Van Klaveren, B. van Reeven, W. Waters, C. Z. Willman, B.
author_facet	Palaversa, L. Donev, E. Ivezić, Ž. Mrakovčić, K. Caplar, N. Jurić, M. Jurkić, T. Campos, S. DeLucchi, M. Jones, D. Malanchev, K. Malz, A. I. McGuire, S. Abel, B. Girardi, L. Pastorelli, G. Trabucchi, M. Zaggia, S. Acosta, E. Adair, C. L. Andrew, J. Aubourg, É. Bauer, A. E. Beebe, W. Bellm, E. C. Blum, R. D. Booth, M. T. Boucaud, A. Branton, D. Burke, D. L. Calabrese, D. Carlin, J. L. Chiang, H-F. Choi, Y. Connolly, A. J. Dagoret-Campagne, S. Daly, P. N. Daruich, F. Daubard, G. Dennihy, E. Drass, H. Eiger, O. Eisner, A. M. Guy, L. P. Hoblitt, J. Ingraham, P. Jammes, F. Jannuzi, B. T. Jee, M. J. Jenness, T. Jones, R. L. Juramy-Gilles, C. Kahn, S. M. Kang, Y. Kannawadi, A. Kelvin, L. S. Kotov, I. V. Kovács, G. Kurita, N. R. Lange, T. Laporte, D. Lazarte, J. C. Liang, S. Lopez, M. Lust, N. B. Lutfi, M. Lynn, O. Mainetti, G. Menanteau, F. Miller, M. Moniez, M. Sedaghat, N. Nourbakhsh, E. Park, H. Y. Peterson, J. R. Plante, R. Malagón, A. Plazas Porter, M. N. Reil, K. A. Riot, V. J. Roodman, A. Rykoff, E. S. Schindler, R. H. Sebag, J. Shaw, R. A. Shugart, A. Siruno, K. B. Smith, J. A. Swinbank, J. D. Thayer, J. G. Thomas, S. Tighe, R. Tucker, D. L. Turri, M. Urbach, E. K. Van Klaveren, B. van Reeven, W. Waters, C. Z. Willman, B.
contents	Aims: We investigate the utility of Rubin's Data Preview 1 for estimating stellar number density profile in the Milky Way halo. Methods: Stellar broad-band near-UV to near-IR $ugrizy$ photometry released in Rubin's Data Preview 1 is used to estimate distance and metallicity for blue main sequence stars brighter than $r=24$ in three $\sim$1.1. sq.~deg. fields at southern Galactic latitudes. Results: Compared to TRILEGAL simulations of the Galaxy's stellar content by (Dal Tio, 2022), we find a significant deficit of blue main sequence turn-off stars with $22 < r < 24$. We interpret this discrepancy as a signature of a much steeper halo number density profile at galactocentric distances $10-50$ kpc than the cannonical $\sim1/r^3$ profile assumed in TRILEGAL simulations. Conclusions: This interpretation is consistent with earlier suggestions based on observations of more luminous, but much less numerous, evolved stellar populations, and a few pencil beam surveys of blue main sequence stars in the northern sky. These results bode well for the future Galactic halo exploration with Rubin's Legacy Survey of Space and Time.
format	Preprint
id	arxiv_https___arxiv_org_abs_2512_24109
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	photoD with Rubin's Data Preview 1: first stellar photometric distances and deficit of faint blue stars. Stellar distances with Rubin's DP1 Palaversa, L. Donev, E. Ivezić, Ž. Mrakovčić, K. Caplar, N. Jurić, M. Jurkić, T. Campos, S. DeLucchi, M. Jones, D. Malanchev, K. Malz, A. I. McGuire, S. Abel, B. Girardi, L. Pastorelli, G. Trabucchi, M. Zaggia, S. Acosta, E. Adair, C. L. Andrew, J. Aubourg, É. Bauer, A. E. Beebe, W. Bellm, E. C. Blum, R. D. Booth, M. T. Boucaud, A. Branton, D. Burke, D. L. Calabrese, D. Carlin, J. L. Chiang, H-F. Choi, Y. Connolly, A. J. Dagoret-Campagne, S. Daly, P. N. Daruich, F. Daubard, G. Dennihy, E. Drass, H. Eiger, O. Eisner, A. M. Guy, L. P. Hoblitt, J. Ingraham, P. Jammes, F. Jannuzi, B. T. Jee, M. J. Jenness, T. Jones, R. L. Juramy-Gilles, C. Kahn, S. M. Kang, Y. Kannawadi, A. Kelvin, L. S. Kotov, I. V. Kovács, G. Kurita, N. R. Lange, T. Laporte, D. Lazarte, J. C. Liang, S. Lopez, M. Lust, N. B. Lutfi, M. Lynn, O. Mainetti, G. Menanteau, F. Miller, M. Moniez, M. Sedaghat, N. Nourbakhsh, E. Park, H. Y. Peterson, J. R. Plante, R. Malagón, A. Plazas Porter, M. N. Reil, K. A. Riot, V. J. Roodman, A. Rykoff, E. S. Schindler, R. H. Sebag, J. Shaw, R. A. Shugart, A. Siruno, K. B. Smith, J. A. Swinbank, J. D. Thayer, J. G. Thomas, S. Tighe, R. Tucker, D. L. Turri, M. Urbach, E. K. Van Klaveren, B. van Reeven, W. Waters, C. Z. Willman, B. Astrophysics of Galaxies Solar and Stellar Astrophysics Aims: We investigate the utility of Rubin's Data Preview 1 for estimating stellar number density profile in the Milky Way halo. Methods: Stellar broad-band near-UV to near-IR $ugrizy$ photometry released in Rubin's Data Preview 1 is used to estimate distance and metallicity for blue main sequence stars brighter than $r=24$ in three $\sim$1.1. sq.~deg. fields at southern Galactic latitudes. Results: Compared to TRILEGAL simulations of the Galaxy's stellar content by (Dal Tio, 2022), we find a significant deficit of blue main sequence turn-off stars with $22 < r < 24$. We interpret this discrepancy as a signature of a much steeper halo number density profile at galactocentric distances $10-50$ kpc than the cannonical $\sim1/r^3$ profile assumed in TRILEGAL simulations. Conclusions: This interpretation is consistent with earlier suggestions based on observations of more luminous, but much less numerous, evolved stellar populations, and a few pencil beam surveys of blue main sequence stars in the northern sky. These results bode well for the future Galactic halo exploration with Rubin's Legacy Survey of Space and Time.
title	photoD with Rubin's Data Preview 1: first stellar photometric distances and deficit of faint blue stars. Stellar distances with Rubin's DP1
topic	Astrophysics of Galaxies Solar and Stellar Astrophysics
url	https://arxiv.org/abs/2512.24109