Bibcode
Ramírez Alegría, Sebastián; Herrero, Artemio; Marín-Franch, Antonio; Puga, Elena; Najarro, Francisco
Referencia bibliográfica
Société Royale des Sciences de Liège, Bulletin, vol. 80, p. 415-419 (Proceedings of the 39th Liège Astrophysical Colloquium, held in Liège 12-16 July 2010, edited by G. Rauw, M. De Becker, Y. Nazé, J.-M. Vreux, P. Williams)
Advertised on:
1
2011
Número de citas
0
Número de citas referidas
0
Descripción
We present a near-IR and optical spectrophotometric characterization of
the stellar population of Sh2-152, as part of our MASGOMAS project.
Using new broad band photometry (J, H and K_S) for the cluster and a
control field, we have constructed CMD in order to select OB-candidates
for H and K spectroscopy. Also, we have obtained the cluster mass
function, with the disc population subtracted using the control field
mass function. From the 13 spectroscopically observed stars, 6 were
classified as B-dwarfs and with individual distance and extinction
estimations. With these values we have obtained estimations for the
distance (3.01 ± 0.11) kpc, mass (1.86 ± 0.83)cdot10^3
{M}_&sun; and age <8.1 Myr for Sh2-152. We also present a new optical
spectrum for the central ionizing star of Sh2-152, showing some
peculiarities associated to this central object and shed some light over
the interesting star deeply embedded into the bright K_S nebulosity
close to the IRAS source IRAS 22566+5828.