Discovery of a very highly extinguished supernova in a luminous infrared galaxy (2008)
Kankare, E., Mattila, S., Ryder, S., Alberdi, A., Romero-Canizales, C., ...
We report the discovery of a confirmed supernova (SN) and a supernova-candidate in near-infrared images from the ALTAIR/NIRI adaptive optics system on the Gemini-North Telescope and NICMOS on the...
Garcet, O., Gandhi, P., Gosset, E., Sprimont, P. G., Surdej, J., Borkowski, V., ...
Our goal is to characterize AGN populations by comparing their X-ray and optical classifications. We present a sample of 99 spectroscopically identified X-ray point sources in the XMM-LSS survey...
The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary (2007)
Frieman, Joshua A., Bassett, B., Becker, A., Choi, C., Cinabro, D., DeJongh, F., ...
The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using...
Vaisanen, P., Mattila, S., Kniazev, A., Adamo, A., Efstathiou, A., Farrah, D., ...
(abridged) We present near-infrared (NIR) adaptive optics imaging obtained with VLT/NACO and optical spectroscopy from the Southern African Large Telescope (SALT) of a luminous infrared galaxy (LIRG)...
The metallicity extremes of the Sagittarius dSph using SALT spectroscopy of PNe (2007)
Kniazev, A., Zijlstra, A., Grebel, E., Pilyugin, L., Pustilnik, S., Vaisanen, P., ...
In this work we present the first spectroscopic results obtained with the Southern African Large Telescope (SALT) telescope during its perfomance-verification phase. We find that the Sagittarius...
The polar ring galaxy AM1934-563 revisited (2007)
Brosch, N., Kniazev, A., Buckley, D., O'Donoghue, D., Hashimoto, Y., Loaring, N., ...
We report long-slit spectroscopic observations of the dust-lane polar-ring galaxy AM1934-563 obtained with the Southern African Large Telescope (SALT) during its performance-verification phase. The...
Mattila, S., Vaisanen, P., Farrah, D., Efstathiou, A., Meikle, W. P. S., Dahlen, T., ...
We report a supernova discovery in Ks-band images from the NAOS CONICA adaptive optics (AO) system on the ESO Very Large Telescope (VLT). The images were obtained as part of a near-infrared search...
Mattila, S., Vaisanen, P., Farrah, D., Efstathiou, A., Meikle, W. P. S., Dahlen, T., ...
Publicación ISI
Mattila, S., Vaisanen, P., Farrah, D., Efstathiou, A., Meikle, W. P. S., Dahlen, T., ...
Publicación ISI
Kainulainen, J., Lehtinen, K., Vaisanen, P., Bronfman, L., Knude, J.
We present a study of radial density structure of the star forming globule, DCld303.8-14.2 (DC303), and a non-star forming globule, Thumbprint Nebula (TPN), using near-infrared data taken with the...
Faint far-infrared sources: Galaxies, clusters, or cluster galaxies (2006)
Vaisanen, P., Juvela, M., Mattila, K., Kotilainen, J. K.
We present results from an on-going follow-up campaign of far-infrared sources detected as part of our ISOPHOT Cosmic IR Background project. Fields have been imaged in the optical and near-infrared,...
O'Donoghue, D., Buckley, D. A. H., Balona, L. A., Bester, D., Botha, L., Brink, J., ...
We describe briefly the properties of the recently completed Southern African Large Telescope (SALT), along with its first light imager SALTICAM. Using this instrument, we present 4.3 hr of high...
SDSS J160043.6+074802.9: a very rapid sdO pulsator (2006)
Woudt, P. A., Kilkenny, D., Zietsman, E., Warner, B., Loaring, N. S., Copley, C., ...
We report the serendipitous discovery of the Sloan Digital Sky Survey star, SDSS J160043.6+074802.9 to be a very rapid pulsator. The variation is dominated by a frequency near 8380 microHz (period =...
Final analysis of ELAIS 15-$mu$m (Vaccari+, 2005) (2005)
Vaccari, M., Lari, C., Angeretti, L., Fadda, D., Gruppioni, C., Pozzi, F., ...
We present the final analysis of the European Large Area Infrared Space Observatory (ISO) Survey (ELAIS) 15-{mu}m observations, carried out with the ISO Camera (ISOCAM) instrument on board the ISO....
A population of extreme mid-to-near-infrared sources: obscured AGN and dusty starbursts (2004)
Johansson, P. H., Vaisanen, P., Vaccari, M.
We present a sample of mid-infrared detected sources from the European Large Area ISO Survey (ELAIS) regions characterised by strong mid-IR radiation with faint near-IR and optical counterparts....
An Overdensity of Extremely Red Objects Around Faint Mid-IR galaxies (2004)
Vaisanen, P., Johansson, P. H.
We have searched for Extremely Red Objects (EROs) around faint mid-IR selected galaxies in ELAIS fields. We find a significant overdensity, by factors of 2 to 5, of these EROs compared to field EROs...
Final Analysis of ELAIS 15 $\mu$m Observations : Method, Reduction and Catalogue (2004)
Vaccari, M., Lari, C., Angeretti, L., Fadda, D., Gruppioni, C., Pozzi, F., ...
We present the Final Analysis of the European Large Area ISO Survey (ELAIS) 15 $\mu$m observations, carried out with the ISOCAM instrument on board the Infrared Space Observatory (ISO). The data...
Number Counts of Bright Extremely Red Objects: Evolved Massive Galaxies at z~1 (2004)
Vaisanen, P., Johansson, P. H.
We present results on number counts of Extremely Red Objects (EROs) in a 2850 arcmin^2 near-infrared survey performed in European Large Area ISO Survey (ELAIS) fields at K
The European Large-Area ISO Survey (ELAIS): the final band-merged catalogue (2004)
Rowan-Robinson, M., Lari, C., Perez-Fournon, I., Gonzalez-Solares, E. A., La Franca, F., Vaccari, M., ...
The European Large-Area ISO Survey (ELAIS): the final band-merged catalogue (2004)
Rowan-Robinson, M., Lari, C., Perez-Fournon, I., Gonzalez-Solares, E. A., La Franca, F., Vaccari, M., ...
We present the final band-merged European Large-Area ISO Survey (ELAIS) Catalogue at 6.7, 15, 90 and 175 mu;m, and the associated data at U, g', r', i', Z, J, H, K and 20 cm. The origin of the...
ELAIS: final band-merged catalogue (2004)
Rowan-Robinson, M., Lari, C., Perez-Fournon, I., Gonzalez-Solares, E. A., Franca, F. L., Vaccari, M., ...
The catalog represents the final band-merged European Large-Area ISO Survey (ELAIS) Catalogue at 6.7, 15, 90 and 175{mu}m, and the associated data at U, g', r', i', Z, J, H, K and 20cm. Details about...
The European Large Area ISO Survey (ELAIS): The Final Band-merged Catalogue (2003)
Lari, C., Perez-Fournon, I., Gonzalez-Solares, E. A., La Franca, F., Vaccari, M., ...
We present the final band-merged ELAIS catalogue at 6.7, 15, 90, and 175 $\mu$m, and the associated data at u,g,r,i,z,J,H,K, and 20cm. The origin of the survey, infrared and radio observations,...
Near and mid-infrared colours of star-forming galaxies in ELAIS fields (2002)
Vaisanen, P., Morel, T., Rowan-Robinson, M., Serjeant, S., Oliver, S., Sumner, T., ...
We present J and K-band near-infrared photometry of a sample of mid-infrared sources detected by the Infrared Space Observatory (ISO) as part of the European Large Area ISO-Survey (ELAIS) and study...
Confusion limit due to galaxies: using SIRTF's Infrared Array Camera (2001)
Vaisanen, P., Tollestrup, E. V., Fazio, G. G.
Recent ISO-data has allowed for the first time observationally based estimates for source confusion in mid-infrared surveys. We use the extragalactic source counts from ISOCAM in conjunction with...
Wide-field J- and K-band galaxy counts in the ELAIS fields (2000)
Vaisanen, P., Tollestrup, E. V., Willner, S. P., Cohen, M.
New near-infrared galaxy counts in the J and K bands are presented over a total area of 0.70 and 0.97 degrees^2, respectively. The limiting magnitudes of the deepest regions are 19.5 in J and 18.0 in...
The Type Ia Supernova 1998bu in M96 and the Hubble Constant (1999)
Jha, S., Garnavich, P., Kirshner, R., Challis, P., Soderberg, A., Macri, L., ...
We present optical and near-infrared photometry and spectroscopy of the type Ia SN 1998bu in the Leo I Group galaxy M96 (NGC 3368). The data set consists of 356 photometric measurements and 29...