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NIKA2 observations of starless cores in Taurus and Perseus

Fuente: arXiv

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Detalles Bibliográficos
Autores principales:	Kramer, C., Adam, R., Ade, P., Ajeddig, H., Andre, P., Artis, E., Aussel, H., Beelen, A., Beno, A., Berta, S., Bing, L., Bourrion, O., Calvo, M., Caselli, P., Catalano, A., DePetris, M., Desert, F. -X., Doyle, S., Driessen, E. F. C., Ejlali, G., Fuente, A., Gomez, A., Goupy, J., Hanser, C., Katsioli, S., Keruzore, F., Ladjelate, B., Lagache, G., Leclercq, S., Lestrade, J. F., Macias-Perez, J. F., Madden, S. C., Maury, A., Mauskopf, P., Mayet, F., Monfardini, A., Moyer-Anin, A., Munoz-Echeverria, M., Navarro-Almaida, D., Perotto, L., Pisano, G., Ponthieu, N., Reveret, V., Rigby, A. J., Ritacco, A., Romero, C., Roussel, H., Ruppin, F., Schuster, K., Sievers, A., Tucker, C., Zylka, R.
Formato:	Preprint
Publicado:	2023
Materias:	Astrophysics of Galaxies
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

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author	Kramer, C. Adam, R. Ade, P. Ajeddig, H. Andre, P. Artis, E. Aussel, H. Beelen, A. Beno, A. Berta, S. Bing, L. Bourrion, O. Calvo, M. Caselli, P. Catalano, A. DePetris, M. Desert, F. -X. Doyle, S. Driessen, E. F. C. Ejlali, G. Fuente, A. Gomez, A. Goupy, J. Hanser, C. Katsioli, S. Keruzore, F. Ladjelate, B. Lagache, G. Leclercq, S. Lestrade, J. F. Macias-Perez, J. F. Madden, S. C. Maury, A. Mauskopf, P. Mayet, F. Monfardini, A. Moyer-Anin, A. Munoz-Echeverria, M. Navarro-Almaida, D. Perotto, L. Pisano, G. Ponthieu, N. Reveret, V. Rigby, A. J. Ritacco, A. Romero, C. Roussel, H. Ruppin, F. Schuster, K. Sievers, A. Tucker, C. Zylka, R.
author_facet	Kramer, C. Adam, R. Ade, P. Ajeddig, H. Andre, P. Artis, E. Aussel, H. Beelen, A. Beno, A. Berta, S. Bing, L. Bourrion, O. Calvo, M. Caselli, P. Catalano, A. DePetris, M. Desert, F. -X. Doyle, S. Driessen, E. F. C. Ejlali, G. Fuente, A. Gomez, A. Goupy, J. Hanser, C. Katsioli, S. Keruzore, F. Ladjelate, B. Lagache, G. Leclercq, S. Lestrade, J. F. Macias-Perez, J. F. Madden, S. C. Maury, A. Mauskopf, P. Mayet, F. Monfardini, A. Moyer-Anin, A. Munoz-Echeverria, M. Navarro-Almaida, D. Perotto, L. Pisano, G. Ponthieu, N. Reveret, V. Rigby, A. J. Ritacco, A. Romero, C. Roussel, H. Ruppin, F. Schuster, K. Sievers, A. Tucker, C. Zylka, R.
contents	Dusty starless cores play an important role in regulating the initial phases of the formation of stars and planets. In their interiors, dust grains coagulate and ice mantles form, thereby changing the millimeter emissivities and hence the ability to cool. We mapped four regions with more than a dozen cores in the nearby Galactic filaments of Taurus and Perseus using the NIKA2 camera at the IRAM 30-meter telescope. Combining the 1mm to 2mm flux ratio maps with dust temperature maps from Herschel allowed to create maps of the dust emissivity index $β_{1,2}$ at resolutions of 2430 and 5600 a.u. in Taurus and Perseus, respectively. Here, we study the variation with total column densities and environment. $β_{1,2}$ values at the core centers ($A_V=12-19$mag) vary significantly between $\sim1.1$ and $2.3$. Several cores show a strong rise of $β_{1,2}$ from the outskirts at $\sim4$mag to the peaks of optical extinctions, consistent with the predictions of grain models and the gradual build-up of ice mantles on coagulated grains in the dense interiors of starless cores.
format	Preprint
id	arxiv_https___arxiv_org_abs_2310_01044
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	NIKA2 observations of starless cores in Taurus and Perseus Kramer, C. Adam, R. Ade, P. Ajeddig, H. Andre, P. Artis, E. Aussel, H. Beelen, A. Beno, A. Berta, S. Bing, L. Bourrion, O. Calvo, M. Caselli, P. Catalano, A. DePetris, M. Desert, F. -X. Doyle, S. Driessen, E. F. C. Ejlali, G. Fuente, A. Gomez, A. Goupy, J. Hanser, C. Katsioli, S. Keruzore, F. Ladjelate, B. Lagache, G. Leclercq, S. Lestrade, J. F. Macias-Perez, J. F. Madden, S. C. Maury, A. Mauskopf, P. Mayet, F. Monfardini, A. Moyer-Anin, A. Munoz-Echeverria, M. Navarro-Almaida, D. Perotto, L. Pisano, G. Ponthieu, N. Reveret, V. Rigby, A. J. Ritacco, A. Romero, C. Roussel, H. Ruppin, F. Schuster, K. Sievers, A. Tucker, C. Zylka, R. Astrophysics of Galaxies Dusty starless cores play an important role in regulating the initial phases of the formation of stars and planets. In their interiors, dust grains coagulate and ice mantles form, thereby changing the millimeter emissivities and hence the ability to cool. We mapped four regions with more than a dozen cores in the nearby Galactic filaments of Taurus and Perseus using the NIKA2 camera at the IRAM 30-meter telescope. Combining the 1mm to 2mm flux ratio maps with dust temperature maps from Herschel allowed to create maps of the dust emissivity index $β_{1,2}$ at resolutions of 2430 and 5600 a.u. in Taurus and Perseus, respectively. Here, we study the variation with total column densities and environment. $β_{1,2}$ values at the core centers ($A_V=12-19$mag) vary significantly between $\sim1.1$ and $2.3$. Several cores show a strong rise of $β_{1,2}$ from the outskirts at $\sim4$mag to the peaks of optical extinctions, consistent with the predictions of grain models and the gradual build-up of ice mantles on coagulated grains in the dense interiors of starless cores.
title	NIKA2 observations of starless cores in Taurus and Perseus
topic	Astrophysics of Galaxies
url	https://arxiv.org/abs/2310.01044