| Records |
| Author |
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Title  |
TOI-4562b: A Highly Eccentric Temperate Jupiter Analog Orbiting a Young Field Star |
Type |
Journal |
| Year |
2023 |
Publication |
The Astronomical Journal |
Abbreviated Journal |
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| Volume |
165 |
Issue |
3 |
Pages |
121 |
| Keywords |
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| Abstract |
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| Programme |
1066 |
| Campaign |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
1538-3881 |
ISBN |
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Expedition |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8647 |
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| Title |
TOI-2525 b and c: A Pair of Massive Warm Giant Planets with Strong Transit Timing Variations Revealed by TESS* |
Type |
Journal |
| Year |
2023 |
Publication |
The Astronomical Journal |
Abbreviated Journal |
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| Volume |
165 |
Issue |
4 |
Pages |
179 |
| Keywords |
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| Abstract |
The K-type star TOI-2525 has an estimated mass of M = M ? and radius of R = R ? observed by the TESS mission in 22 sectors (within sectors 1 and 39). The TESS light curves yield significant transit events of two companions, which show strong transit timing variations (TTVs) with a semiamplitude of ?6 hr. We performed TTV dynamical and photodynamical light-curve analysis of the TESS data combined with radial velocity measurements from FEROS and PFS, and we confirmed the planetary nature of these companions. The TOI-2525 system consists of a transiting pair of planets comparable to Neptune and Jupiter with estimated dynamical masses of m b = and m c = M Jup, radii of r b = and r c = R Jup, and orbital periods of P b = and P c = days for the inner and outer planet, respectively. The period ratio is close to the 2:1 period commensurability, but the dynamical simulations of the system suggest that it is outside the mean-motion resonance (MMR) dynamical configuration. Object TOI-2525 b is among the lowest-density Neptune-mass planets known to date, with an estimated median density of ? b = g cm?3. The TOI-2525 system is very similar to the other K dwarf systems discovered by TESS, TOI-2202 and TOI-216, which are composed of almost identical K dwarf primaries and two warm giant planets near the 2:1 MMR. |
| Programme |
1066 |
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Edition |
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| ISSN |
1538-3881 |
ISBN |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
8646 |
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| Title |
TOI-1231 b: A Temperate, Neptune-sized Planet Transiting the Nearby M3 Dwarf NLTT 24399 |
Type |
Journal |
| Year |
2021 |
Publication |
The Astronomical Journal |
Abbreviated Journal |
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| Volume |
162 |
Issue |
3 |
Pages |
87 |
| Keywords |
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| Abstract |
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| Programme |
1066 |
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| ISSN |
1538-3881 |
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Approved |
yes |
| Call Number |
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Serial |
8196 |
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| Author |
Udisti R., S. Becagli, E. Castellano, O. Cerri, F. Marino, A. Morganti, F. Rugi, M. Severi, R. Traversi.si. |
| Title |
Today and past climate-environment feedback processes from temporal trends of selected markers of bio-geo-chemical cycles in antarctic depositions. |
Type |
Conference - National - Communication |
| Year |
2007 |
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| Abstract |
Congresso Nazionale di Chimica degli Ambienti Polari, Venezia, Giugno 2007 |
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1181 |
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Approved |
yes |
| Call Number |
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Serial |
5437 |
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| Author |
Fahlman A., Schmidt A., Jones D.R., Bostrom B.L. & Y. Handrich |
| Title |
To what extent might N2 limit dive performance in king penguins? Journal of Experimental Biology. |
Type |
Journal Article |
| Year |
2007 |
Publication |
Journal of experimental biology |
Abbreviated Journal |
J. Exp. Biol. |
| Volume |
210 |
Issue |
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Pages |
3344-3355 |
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| Programme |
394 |
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Edition |
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| ISSN |
0022-0949 |
ISBN |
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Approved |
yes |
| Call Number |
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Serial |
4553 |
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| Author |
Gilbert C., Le Maho Y., Beaulieu, M. & Ancel A. |
| Title |
To what extent is the huddling behaviour of emperor penguins influenced by meteorological factors? |
Type |
Conference - International - Poster |
| Year |
2006 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
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| Abstract |
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| Programme |
137 |
| Campaign |
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Edition |
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ISBN |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
5104 |
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| Title |
To breed or not to breed: endocrine response to mercury contamination by an Arctic seabird
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Type |
Journal Article |
| Year |
2013 |
Publication |
BIOLOGY LETTERS |
Abbreviated Journal |
1744-9561 |
| Volume |
9 |
Issue |
4 |
Pages |
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| Keywords |
black-legged kittiwake, GnRH challenge, intermittent breeding, luteinizing hormone, mercury, |
| Abstract |
Mercury, a ubiquitous toxic element, is known to alter expression of sex steroids and to impair reproduction across vertebrates but the mechanisms underlying these effects are not clearly identified. We examined whether contamination by mercury predicts the probability to skip reproduction in black-legged kittiwakes (Rissa tridactyla) from Svalbard. We also manipulated the endocrine system to investigate the mechanism underlying this relationship. During the pre-laying period, we injected exogenous GnRH (gonadotropin-releasing hormone) to test the ability of the pituitary to release luteinizing hormone (LH, a key hormone for the release of sex steroids and hence breeding) in relation to mercury burden. Birds that skipped reproduction had significantly higher mercury concentration in blood than breeders. Endocrine profiles of these birds also varied based on breeding status (breeders versus non-breeders), mercury contamination and sex. Specifically, in skippers (birds that did not breed), baseline LH decreased with increasing mercury concentration in males, whereas it increased in females. GnRH-induced LH levels increased with increasing mercury concentration in both sexes. These results suggest that mercury contamination may disrupt GnRH input to the pituitary. Thus, high mercury concentration could affect the ability of long-lived birds to modulate their reproductive effort (skipping or breeding) according to ongoing environmental changes in the Arctic, thereby impacting population dynamics. |
| Programme |
330 |
| Campaign |
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| Address |
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Thesis |
Bachelor's thesis |
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Series Issue |
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Edition |
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| ISSN |
1744-9561 |
ISBN |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
4418 |
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| Author |
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| Title |
To breathe or not to breathe ? Optimal breathing, aerobic dive limit and oxygen stores in deep-diving blue-eyed shags |
Type |
Journal Article |
| Year |
2008 |
Publication |
ANIMAL BEHAVIOUR |
Abbreviated Journal |
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| Volume |
76 |
Issue |
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Pages |
565-576 |
| Keywords |
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| Abstract |
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| Programme |
109 |
| Campaign |
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Thesis |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0003-3472 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
5692 |
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| Author |
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| Title |
To breathe or not to breathe ? Optimal breathing, aerobic dive limit and oxygen stores in deep diving blue-eyed shags. |
Type |
Journal Article |
| Year |
2008 |
Publication |
Animal behaviour |
Abbreviated Journal |
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| Volume |
76 |
Issue |
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Pages |
565-576 |
| Keywords |
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| Abstract |
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| Programme |
394 |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
0003-3472 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
4948 |
| Permanent link to this record |
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| Author |
Garcia S. & Dhont D. |
| Title |
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Type |
Journal Article |
| Year |
2005 |
Publication |
Geodinamica acta |
Abbreviated Journal |
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| Volume |
18 |
Issue |
1 |
Pages |
31-41 |
| Keywords |
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| Abstract |
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| Programme |
316 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0985-3111 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
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Approved |
yes |
| Call Number |
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Serial |
3052 |
| Permanent link to this record |
