Near infrared photometry of southern pairs and triplets of galaxies

Ivnio Puerari; Margarita Valdez-Gutirrez; Sebastian Gurovich; Kenneth F. Freeman; Hctor Hernndez-Toledo

doi:10.1017/S1743921306006405

Near infrared photometry of southern pairs and triplets of galaxies

Ivnio Puerari^*, Margarita Valdez-Gutirrez, Sebastian Gurovich, Kenneth F. Freeman, Hctor Hernndez-Toledo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We present near infrared photometry of select pairs and triplets of galaxies observed with the CASPIR camera attached to the 2.3m Advanced Technology Telescope at Siding Spring Observatory, Australia. The preliminary results show that galaxies in pairs or triplets present near infrared colors that are redder than normal galaxies. We also performed a morphological analysis using bi-dimensional Fourier Transform techniques, as well as classical bulge + disk fits. Compared to isolated galaxies, the light distribution of galaxies in pairs and triplets often needs a larger number of Fourier coefficients to be well represented. Also, light profiles usually show deviations from the exponential disk (disk distortions, strong bars, etc.). In the future we intend to define some method to quantify the strength of the interactions by using the Fourier coefficients and/or the magnitude of the deviations from the classical Sersic + exponential laws.

Original language	English
Pages (from-to)	237
Number of pages	1
Journal	Proceedings of the International Astronomical Union
Volume	2
Issue number	S235
DOIs	https://doi.org/10.1017/S1743921306006405
Publication status	Published - Aug 2006

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title = "Near infrared photometry of southern pairs and triplets of galaxies",

abstract = "We present near infrared photometry of select pairs and triplets of galaxies observed with the CASPIR camera attached to the 2.3m Advanced Technology Telescope at Siding Spring Observatory, Australia. The preliminary results show that galaxies in pairs or triplets present near infrared colors that are redder than normal galaxies. We also performed a morphological analysis using bi-dimensional Fourier Transform techniques, as well as classical bulge + disk fits. Compared to isolated galaxies, the light distribution of galaxies in pairs and triplets often needs a larger number of Fourier coefficients to be well represented. Also, light profiles usually show deviations from the exponential disk (disk distortions, strong bars, etc.). In the future we intend to define some method to quantify the strength of the interactions by using the Fourier coefficients and/or the magnitude of the deviations from the classical Sersic + exponential laws.",

author = "Ivnio Puerari and Margarita Valdez-Gutirrez and Sebastian Gurovich and Freeman, {Kenneth F.} and Hctor Hernndez-Toledo",

year = "2006",

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language = "English",

volume = "2",

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journal = "Proceedings of the International Astronomical Union",

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TY - JOUR

T1 - Near infrared photometry of southern pairs and triplets of galaxies

AU - Puerari, Ivnio

AU - Valdez-Gutirrez, Margarita

AU - Gurovich, Sebastian

AU - Freeman, Kenneth F.

AU - Hernndez-Toledo, Hctor

PY - 2006/8

Y1 - 2006/8

N2 - We present near infrared photometry of select pairs and triplets of galaxies observed with the CASPIR camera attached to the 2.3m Advanced Technology Telescope at Siding Spring Observatory, Australia. The preliminary results show that galaxies in pairs or triplets present near infrared colors that are redder than normal galaxies. We also performed a morphological analysis using bi-dimensional Fourier Transform techniques, as well as classical bulge + disk fits. Compared to isolated galaxies, the light distribution of galaxies in pairs and triplets often needs a larger number of Fourier coefficients to be well represented. Also, light profiles usually show deviations from the exponential disk (disk distortions, strong bars, etc.). In the future we intend to define some method to quantify the strength of the interactions by using the Fourier coefficients and/or the magnitude of the deviations from the classical Sersic + exponential laws.

AB - We present near infrared photometry of select pairs and triplets of galaxies observed with the CASPIR camera attached to the 2.3m Advanced Technology Telescope at Siding Spring Observatory, Australia. The preliminary results show that galaxies in pairs or triplets present near infrared colors that are redder than normal galaxies. We also performed a morphological analysis using bi-dimensional Fourier Transform techniques, as well as classical bulge + disk fits. Compared to isolated galaxies, the light distribution of galaxies in pairs and triplets often needs a larger number of Fourier coefficients to be well represented. Also, light profiles usually show deviations from the exponential disk (disk distortions, strong bars, etc.). In the future we intend to define some method to quantify the strength of the interactions by using the Fourier coefficients and/or the magnitude of the deviations from the classical Sersic + exponential laws.

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DO - 10.1017/S1743921306006405

M3 - Article

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VL - 2

SP - 237

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

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ER -

Near infrared photometry of southern pairs and triplets of galaxies

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